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[PLEASE HELP] my 97 Q45 won't start.. from a car newb..

dr.styller — 2009-11-21T15:39:51-08:00

Hi all,
I have been desparately looking for an answer to my problem but I have no idea what to look for mainly because I know NOTHING about cars.. (yeah maybe just tiny bit since I am still a guy.)

Anyway, I have 97 Q45t with 170,000 miles on it. One day I started the car and it didn't start (it worked just fine the day before).

To be more precise, the car "tries" to start as it makes that starting noise but the engine doesn't get started.. It seems to me that battery is working fine but something that delivers the power from the battery to engine is not working.. (that was my logic)

I really don't wanna spend hundreds of dollars with towing and repair costs since I will be using the car only for next 6 month or so...

So could anyone help me please?

2004 g35 sedan 6mt HVAC problems

rzcarguy22 — 2009-11-20T08:47:16-08:00

Hello, im new to the forums, ok down to business
(yes, i looked through old topics, found nothing helpful, and the dealer said this is the most screwed up HVAC system he's ever seen in 30 years blah blah blah)

midsummer my A/C stopped working.

It was working on my way to work. as i parked, i heard a fairly loud flushing noise. didn't think anything of it. that afternoon after work, the ac wouldn't turn on. I recharged the refrigerant, and the A/C system turned back on, but within 10 minutes the A/C system shut off cuz the refrigerant leaked out again. it leaked out of the little hose underneath the HVAC unit. I did a little research and decided it was either the evaporator, the expansion valve, or a seal in the box.

I took the dash apart to diagnose (it was a lot more work that it looked like in the FSM). and to the best of my knowledge, that was the problem (i wasn't able to take it fully down mainly because the car is my daily driver and i needed it for monday in driving condition.

come september, when it started to rain again, (i can live without A/C) i notice that my air won't change which vents . its stuck on the face pointing vents. It appears to be a motor/sensor problem on the air mode door.

I end up running the diagnosis on the HVAC, and the air mode door sensor and motor fail, as well as the passenger side air mix door sensor and motor. The light sensor (i guess determines how sunny it is outside) also failed. i believe the driver side temp sensor also failed, but i would have to run it again to confirm.

I havn't had much time of late (going on business travel weekly) to work on it, so i took the car to an infiniti dealer to have them give me an idea (and hopefully fix it) i talked with the mechanic guy, and he said it'd be about 1300 bucks parts and labor to fix.

I get a call the next morning saying that the whole dash needs to come out (thats what i thought the 1300 bucks was doing....) and i was looking at paying over 100 bucks an hour for 16 hours just to remove and install the dash. i have no intention of dropping $2500+ for a car that is worth 11k on a good day according to kbb.

so i have my old car that i've been fixing to sell for the past few months, so i might be able to have my infiniti out of commision for a week or so to get this fixed.

question i have, is after taking the dash out (a large task in its own) how much of a b**** is it to replace/ fix the motors/sensors, along with the evaporator? i looked through the FSM, and it looks like a large trial and error guessing game.

so, did me taking the dash down the first time cause the motors/sensors to not act correctly (ie did i mess them up/plug them in wrong/break them) and how does one fix my laundry list of problems? any help/advice would be appreciated

Installing aftermarket cd player in 03 M45

MrM45 — 2009-11-18T13:43:45-08:00

Hi i'm new to this site, hopefully i can get some solution to my problem. i got an 03 M45 and i'm trying to install an after market cd player (alpine cda-9885) buy can't find any answer anywhere. i can't find any aftermarket wire harness any where too. i really dont want to cut the factory harness. if any one has done this installation or know where i can find an aftermarket harness please help ur infiniti brother out. thnx i dont really care about the voice control or the steering controls.

question for someone who knows

3144 — 2009-11-16T07:31:10-08:00

I have a 98-Infiniti QX4 and the rear suspension bottoms out very easy, I replaced the rear shocks but it continues so I now think it's the rear coil springs.
I have check a couple of auto parts stores and they don't carry the springs so I went to the dealer and I can get them from them but they were expensive, but I was really wondering is

1) Does someone else (not Infiniti) make a better spring ? Do you have their webb address?
2) Is this something I can do on my back or should I take it to a shop to replace?

Thanks.

Broken Car :(

Kenrik — 2009-11-18T16:02:03-08:00

2003 G35 Coupe - 107k

Code P1124 - Check engine VDC and Slip lights all come on.

So it's the throttle body control motor? I hear a click when I press the gas and it will not go above 1500rpms
Buy a new Throttle body or is it possible to fix it?

I know I have bad O2 Sensors, could that be related to my problem?

Tell me what parts I need to buy to fix it!

Q45 knock sensor job, AKA: i hate my life.

BINKSLIDE — 2009-11-17T07:45:49-08:00

i've recently purchased a 94' Q45, after 3 days of the car running rather sluggish it finally died... ECU rang out the codes for Fuel pump, and knock sensors... changed fuel pump... and i'm in the process of changing the knock sensors... have new ones in hand... after the nightmare of removing the plenum, i discovered that the old knock sensors were brittle, cracked and all around garbage, nothing on this car was ever maintained definatly one of those guy that says "never had to replace anything, just put gas and oil in her!" as if that's a GOOD thing to say about a 14 year old car... worst news ever, all that says to me is, prepare to replace EVERYTHING... my question is, since i have to order new knock sensor harnesses also, because i REFUSE to go back under that plenum once this jobs over... ( and i have to buy like 4 specialty shaped hoses also, since you have to cut them to remove the plenum, FML. ) what can i expect to pay for a new harness, and more importantly besides going to the dealership... where the s*** do i find one?!

97 Q45 Bose Stereo Volume Control Problems

srwood1 — 2009-11-15T09:25:05-08:00

The volume control on my factory Bose Stereo unit has slowly over time quit doing it's job. Most of the time it does not change the volume at all, unless I push or pull on it while turning - and even then it is hard to get the desired results. Sometimes when decreasing the volume, it will go up instead - and visa-versa. I'm afraid I'm going to inadvertantly blow out my speakers one of these days.

I thought I might be able to pop off the volume knob and spray some rheostat cleaner, but the knob doesn't want to budge.

Any ideas? Does it have a conventional rheostat?

Thanks

1993 & 1996 Q45 Hood interchangeable

BD — 2009-11-15T15:57:09-08:00

I have a damaged 1996 Q45 hood , and i found a 1993 q45 of the same color at a junk yard. to me the car is almost the same as 96' even the interior but the door sticker says 3/93 . So i was just wondering can the hood of that 93 model fit on my 96 one.Any help would be great.

Brembos brake

WhiteG35Bullet — 2009-11-16T10:04:31-08:00

I got a problem, well i changed the brake pads and resurface the rotors but then while im driving, everytime i brake i can hear some sort of squealing coming from the brakes, but how can that happen if i just resurface the rotors and change the brembos pad? any comment is appreciated. Thanks.

Moisture in Headlight Lens

rgrills — 2009-11-14T14:58:58-08:00

1997 Q45. I'm getting moisture in (driver side) headlight lens -- the seal may be no good or the lens is cracked, although I can't see it. Where can I find a replacement that's not $300+?

SUSPENSION QUESTION Y33(Non Touring and TOuring complete Swap)

Bigdipper — 2009-11-14T16:34:02-08:00

What would happen if i put NON Touring Shocks on a Touring y33.
My plan is to remove the entire assembly with spring attached and install it on my Touring Q. Will there be a complete suspension brake down? Will my wheels fall of as am Driving? LOL

If the difference in TOuring and non Touring is comfort then i want to move on this

I am practically getting these shocks for free. its coming off a 97Q45.
has less than 5 thousand miles.

I plan on keeping my 97t for another year, so i am very reluctant in spending any major amount of money.

ANY SUGGESTION??

Q45 Injector help

franknitty69 — 2009-11-11T21:29:26-08:00

So my #8 injector went out and i replaced it with a blueish/purpleish one from scottsdale. the original was like a whitish/greyish color.

anyways since replacing it the q is hard to start but only the 2nd time. so if i wake up in the morning, q45 starts right up. if i drive it somewhere, turn the engine off for a few minutes and then try to start the engine, it takes about 2-3 key turns to start (as if the engine is flooded). starts right up after 2-3 key turns though.

could there be something wrong with the new blue injector? maybe too much fuel during ignition? if i disconnect the injector the car idles rough, but this sympton goes away. if removed the injector and checked the o-rings and everything looks kosher.

any ideas?

Diagnostic Trouble Codes trying to pass inspection

razah9 — 2009-11-06T08:08:13-08:00

My girlfriend has a 99 G20 sedan purchased private
seller a year ago. Her engine light came on a couple
months ago inspection is due. Amechnaic gave her
the following OBD2 Code:

The MIL is commanded on.

Emissions-related powertrain DTCs, Mode 3:
Electronic Control Unit ID: 10
P0325
Knock Sensor 1 Circuit Malfunction (Bank 1 or Single Sensor)
Continously Monitored Systems DTCs, Mode 7:
Electronic Control Unit ID: 10
P0325
Knock Sensor 1 Circuit Malfuntion (bank 1 or single sensor)

======

Where should she go from there? I have no idea what
that means or how much...

wire layout to the BCM

tbgreen21 — 2009-11-07T00:09:25-08:00

what are the colors and wire locations for the 3 connectors that plug into the BCM . And I mean the individual wire collors not just the black and white plug ins. My BCM was kicked free and the wires seperated.

New owner questions. Couple of problems with my new to me 2002 Q45 F50

andrewcconti — 2009-11-08T20:09:30-08:00

I am the proud owner of 2002 Q45 and to say I am 100% happy with my choice would be a understatement. That said I have run into a few problems and I am wondering if these are "common known issues" with hopefully simple straightforward solutions.
1) Water in the spare tire well. We were deluged with a nor'easter rainstorm over the weekend and for whatever reason I had decided to check to see what kind of spare came with the car (full size spare) I found water in the spare tire well! The rest of the trunk was bone dry, carpet, styrofoam inserts everything was dry. Both trunk plugs were in place (I took one out to drain the trunk and after it was dry I put it back in. Is this a common problem with F50's?

2) Right side (passenger) mirror was working when I bought the car 2 weeks ago. For whatever reason it will no longer move?

3) Rear sunshade does not work

Thanks in advance! My biggest concern is the water entering the spare tire well.

Andrew

2006 m35 lightbulb replacement

mini — 2009-10-28T07:57:26-08:00

Hi,
I have searched and not found any information regarding replacement of a front light bulb for a 2006 M35 Infiniti. The Xenon lightbulb burned out and I would like to replace it. Is it difficult because the lights turn with the steering wheel. Is there a manual page that shows how to do it? The dealer wants to charge me $350 for parts and install . It sounds like a lot.
Thank you.

1998 QX4 rear latch bolts.

newnham — 2009-10-26T22:04:06-08:00

Hey all,

I am trying to get an answer and I have looked everywhere. I have a 1998 infiniti qx4. The rear latch bar that mounts to the vehicle is missing its bolts. I bought replacement bolts but there seems to be no way to get the nuts on the other side of the latch. I have askes several people and everyone is at a loss. I am about to just tack weld it on.

Nissan/Infiniti mechanic near Auburn, AL

fitzgerald — 2009-10-25T08:52:42-08:00

I own a 2001 i30t, and new to the area. Does anyone know of a good nissan/infiniti mechanic near Auburn/Montgomery, AL or Columbus, GA? Thanks.

Q45 Odd Shift Lock / Shifter noise

rgrills — 2009-10-28T11:00:17-08:00

I searched . . . My 1997 Q45 w/44K miles, but is making a scratchy, buzz-like, static noise coming from the shifter. It comes and goes, but is there most of the time. Any thoughts?

I now think the "static" noise is coming from the area around the shifter console -- when I press down on the plastic simulated wood around the shifter, the noise goes away. Is this piece of interior finish held down with some kind of glue? Does anyone have an idea of how this area is assembled?

Modified by rgrills at 2:59 PM 10/26/2009

Q45 trouble

bdl — 2009-11-15T05:14:06-08:00

Hello first timer

I have a 1996 Q45 which has 2 codes
0325 knock sensor I was told this would not turn on check engine light
0335 crankshaft postion sensor I clear codes 0235 comes right back with check engine light also.Does anybody know where the crankshaft position sensor is located and how to remove and replace.by the way if I run the good gas 93 she runs perfect
I looked thru the site and could not find any information about crankshaft postion sensor
Thanks bdl

Modified by bdl at 8:04 PM 10/20/2009

Modified by bdl at 5:59 AM 10/22/2009

Where is the best place to tap a GPS power source Hardwire

Mr3Putt — 2009-10-21T11:04:53-08:00

Hi All,

First post, wow what a resource!

I have searched as best as I could and couldn't find an answer.

Here's the deal....

I just picked up an 02 Infiniti I35. I want to add an aftermarket GPS with a promount clip to the right side of the dash. I have a setup similar to that in my Murano, there is a power outlet (in the Murano) just to the left of the glovebox that works great. No such outlet in the "new, I35.

I would like to hardwire the GPS to a "non constant" power source. One that just comes on with the ignition.

Before I start unscrewing the dash, does anyone know of any nearby wires that I could safely tap into, to speed my project along?

Thanks in advance!

plenum job

nayshean1 — 2009-10-19T21:56:35-08:00

same as my other post i've read post after post even archived information but nothing. anyway my 94 q45t i am the 2nd owner of this car the maintenance records are in tact an are up to date i have an injector prob that im going to fix along with knock sensors, but the plenum hoses everyone refers to what are they an how many hoses this job consists of where can i buy them an whats the estimated price for them.

p.s. im also changing the plugs i want to go with iridium plugs but i want the best that money can by an suggestion from you Q45 guru's an experts?

climate control prob

nayshean1 — 2009-10-19T21:53:58-08:00

first i want to start by saying that i have read every thread an post about this an to no avail nothing.

i have a 94 q45t an my climate control only blows cold air even if i set the thermostat to 85 it still only blows cold an the fan only works on high. what is wrong with this an how can i fix it? also i have seen threads about changing the cabin air filter but i dont know where it is an how to change it, the fsm does not give me that imformation. but can someone give me a link to see how this is done?

No Manufacturers for newer Q45 struts

neagan — 2009-11-09T06:33:03-08:00

I cannot find a manufacturer for replacement struts on my 2002 Q45. What am I supposed to do? Help!

Tokico dosn't go beyond 1996
KYB never
Monroe never

Yet I see pic's of people with coil overs on this site?

Please help me. Sincerely, Nitro-Nicky

1995 infiniti g20 stereo problems

rusty1fan2001 — 2009-10-14T15:01:06-08:00

I just bought a 95 g20 and the only problem with it is the stereo.The back speakers wont work and the door speakers dont work.I checked fuse for amps and it is good.When i pull the knob out on stereo for fader it does nothing but other knob for balance works.The only speakers that work are the little ones up by windshield it sounds like you have headphones on.I was wondering if anyone could help me with this.Thanks RT

2004 FX35 power steering effort

schwarz633 — 2009-10-14T15:01:00-08:00

The steering wheel on my 2004 FX35 (55K miles) seems more difficult to turn than any other car with power steering that I drive. It doesn't feel like anything is binding, just weak power assist. I had the rack replaced (leaking) under warranty about 9 months ago, but I'm out of warranty now. I was hoping that the power steering pump would have some sort of a pressure adjustment, but after reading through the FSM it doesn't appear that there is anything like that. It mentions doing a pressure relief test, but if it fails the suggested next step is pump disassembly and repair. Is there a kit available for this? Do you think that it will reduce my steering effort? Thanks.

TPS Voltage Issue

Supraguy31 — 2009-10-09T08:19:28-08:00

Hi All,

First I want to say that Im happy I found this site and Im looking forward to learning as much as possible. Ive search this topic but without any good results.

I have a 92 Q45 throttle body that is installed on my 91 Toyota Supra. When reading the Voltage with the throttle completely closed, Its sitting at .44v, Now when I start the car and rev the motor or hold the throttle at roughtly .60v - .70v (Which is where Im at when normal cruising mode) the voltage will suddenly drop to .15 then back up and then down again. Once this happens, my Wideband A/F meter goes crazy rich and the car stumbles or seems very slugglish.

I know its not a Infiniti but Its a Q45 Throttle body. Can anyone help me with this. Does it sound like I need another TPS and if so, where can I source one. Is there a Fix for this?

Thank you all

Robert

PLEASE PLEASE HELP DIAGNOSE MY PROBLEM q45

Bigdipper — 2009-10-16T22:34:03-08:00

1997 q45
While pulling up to my driveway i heard a high pitch squeaky noise coming from engine. I inspected all hoses and found that the power steering pump belt were in bad shape. I Then decided to replace the Pump and belt. Anyway after installing the pump i turned the car on but the noise was the there. I then decided to look at the other pulley and tensions. I came across the water pump belt. I slightly tighten Pulley and tension. Then turned the car back on and wall-la Squeaky noise is GONE, but now another problem, i notice the fan belt not moving, alternator not spinning, water pump belt not moving, in fact on my panel there is a battery signal.

PLEASE PLEASE ANY SUGGESTION ASAP.

Modified by Bigdipper at 4:48 PM 10/8/2009

P/N Verification for 1994 Q45t

qtrhorse4me — 2009-10-09T21:11:41-08:00

Hi, I just ordered a Power Amplifier Assembly for my RF door from infinitypartsusa.com. Can someone verifify that the correct p/n is 25424-68U00? I did some research and it seems that this might be the part number for the right rear door and not the right front (although they may be the same). Just want to make sure before I tear the door apart and find that it's not the correct one. Thx for the help.

Car runs like pooh after replacing injectors...

frenetic — 2009-10-13T14:55:34-08:00

http://www.youtube.com/watch?v=fyN9_plaFs4

It dies when I take my foot off the gas, blows grey smoke, nothing visibly wrong on the engine but I am an idiot about this car. What could I be overlooking?

EDIT: was a improperly seated plenum gasket... I fixed it and now it runs like crap, doesn't spew grey smoke, and whistles a little bit from the same area. Think I screwed up that gasket and need to replace..

Modified by frenetic at 6:26 PM 10/7/2009

Q45 plenum install question

frenetic — 2009-10-07T21:12:44-08:00

Finally putting the Q back together after injector replacement. Getting this hose off at first was a pain in the a**, I ended up just cutting it and buying a new hose, as was recommended here. Now, I am putting it back together and along with juggling which hoses to put on first while I set the plenum in place, I have no idea how to get this one seated properly. I got the hose attached to the bottom connector behind the engine, but can't get a proper grip on the hose to slide the plenum in.

This is probably just one of those things I gotta work at until I get it, but knowing that many people have done this before I'd like any tips people have for this whole re-assembly, especially this hose. Thanks!

1997 Q45(POWER STEERING BELT)

Bigdipper — 2009-10-06T22:38:50-08:00

Im trying to replace power steering belt
can someone tell me what i must losen in order to remove old belt, and replace with new. and if possible describe the location. THANKS IN ADVANCE

Knock Sensor Or not

kellychud — 2009-10-03T10:18:58-08:00

I have 1990 Q45 have changed computer maf sparkplugs etc. it has 70000miles I have had the mechanic check the knock sensors which test ok but it still has low power and acceleration up to 40mph the dealer here in Calgary Canada wasnt around when this car was made need help please.

abs problem

nayshean1 — 2009-10-06T20:46:55-08:00

i have a infiniti q45t 94 an when i got off work yesterday my abs light was on, well i went to sleep an when i got up at 4 o'clock in the morning i can hear a motor running under hood on the passenger side. what has happened an what can i do to fix this?

RPM/Throttle Problems!!

ZEUS_84 — 2009-09-30T22:39:51-08:00

Hey everybody!! I recently purchased a 2006 g35 6mt 2 months ago. It currently has 27,000 miles. The problem I'm having with my car is the rpm. Whenever I have the car in gear and accel, the rpm jumps and the speed tends to remain the same. I could be driving on the highway in 6th gear at 65mph and decide I want to increase my speed to 70, the rpm spikes up and the speed remains the same or increase by 1-3mph. Didn't know if it was a problem with the throttle, clutch, or the clutch release bearing/fork. I've tried searching for similar posts but couldn't find any that matched the problem I am facing. Every advice/diagnosis will be greatly appreciated. Also, if anybody knows of any mechanical shops in the northern California area please post! Thanks for reading!

Are these interchangable

frenetic — 2009-09-29T19:59:35-08:00

Picked up a stereo and temp gauge from the 1991 Q45A at the junkyard today, I have a 1990 Q45 non-active. Will the stereo work? It looks different... but seems to have the same functions. Probably a stupid question.

2000 QX4 - Power Window Issues

kjackson — 2009-09-29T22:21:00-08:00

2000 QX4 Power Windows - Can lower windows from any of the passenger controls, can only raise them from the driver side controls. I can only assume one of two things - either this is some kind of safety control that I can't find listed in the vehicle manual or the control whatchamathingy is hosed. Suggestions? (Searched Recent/Archival Posts) Also could you send me the FSM?

2000 QX4 Remote Entry Keyfob Replacement

kjackson — 2009-09-29T22:23:25-08:00

Third owner of a 2000 QX4. Really love the vehicle by the way! Didn't come with any remotes. Just for laughs I requested a quote from a dealership. Found a direct replacement online for $53 and it comes with programming instructions. There are two versions available, supposed to get FCC ID# off the back of the existing fobs but I don't have those. So how do I determine which version of the replacement fob to order? (and yes I did search both recent and archival posts...)

post#3 car still wont start.

omarb45 — 2009-09-29T21:58:04-08:00

94 q45. changed out fuel pump opened fpcu no damage jumpered pump.replaced relay in trunk.cant get pump to run,quiet as a church mouse.fuses under dash look good.car ran fine,then did slight hesitation pulling off from stop sign.no other problems,then 2 days later no start.help have 2 small ones that go to school 20 miles apart now down to one car.I need a miracle help!!!!!!!

Problem with Throttle Cable going through Firewall

AlabamaDan — 2009-09-27T22:26:22-08:00

My problem is with my 1998 Infiniti QX4, which honestly is more like a pathfinder mechanically. I had a problems months ago with the idle revving to high and surging up and down. It turned out to be a problem with the throttle cable coming through the firewall. A buddy of mine actually wrapped the cable with duct tape and fixed it. Well, now it's been a couple of months and the problem is back. Turns out the duct tape has turned loose. Rather than just put another band aid on it again I'd like to understand what the cause is and how to properly fix it.

Help please.

2001 QX4 Shift hesitation 1-2 and flare 3-4 on light accelaration

Tom S. — 2009-09-25T20:41:49-08:00

My 01 QX4 has developed a hesitation when shifting from 1-2 and a shift flare from 3-4 only on light accelaration. If accelerated normally or quickly the hesitation or flare do not occur. The porblems only occur on very light acceleration and at 1600 rpm. It also does not occur when the engine/trans. are cool. When the car is first driven after sitting in the garage overnight and the temp. guage is down the trans shifts normally. Within about a mile and when the temp guage rises the shift problems occurs.
The vehicle has 95,000 miles. Used as a daily driver. Mostly highway but some city miles. Never been used for towing. It has been serviced regularly including trans fluid change at about 75,000. Neither engine or trans show any codes. Throttle body, Throttle position sensor, O2 sensors, fuel filter have been replaced. Trans fluid shows full, is the right color and does not have a burned odor.

I took it to the Infinity dealer today and they could not find a code either. They suggest that it could be a faulty trans solinoid assembly and/or a transmission control module based on a TS bulletin on 2-3 shift flare, but do not have a suggestion of what it might be causing the hesitation when shifting from 1-2. The dealer also said that changing the solinoid and/or control module may not fix the problem and a new trans would be needed.

Before I proceed to spend many hundreds on the solinoid and/or control module just to find that the trans needs to be replaced I thought I would post to see if anyone else has had this problem in hopes that they would respond with a less expensive repair suggestion.

Any help is greatly appreciated.

Engine Code = P0462, Fuel level sensor low input (2004 M45)

candymanfb — 2009-09-25T09:30:48-08:00

My 2004 Infiniti M45 has been giving me code 0462 for the past two weeks. I have not seen any drivability changes. I was assuming that it was a result of the faulty fuel gauge instrument issue the first gen M45 have, but I received this error even with a most full tank (15 gallons).

I�m taking the car to an independent Infiniti/Nissan mechanic. He�s charging 90 bucks for diagnostic, while the dealer wants 140.

If anyone has had this problem please give me an idea of the cause and or cost to repair.

She's out of warranty.

Femi

96 I30 P0600 & P0500

g35wannabe — 2009-09-23T06:48:05-08:00

the p0500 is to check the vss and its good but the problem is the p0600 is a comms error between the ecm and tcm. it says to check resistance between the ecm wires 65,66,73,74 & 77 to tcm wires 47, 38, 10, 11 & 12. well i have all the wires on the tcm side but ecm wires 73 & 74 are missing??? it doesn't appear as theres been any tampering so i tried to see if maybe they were moved in the ecm plug? nope? its not been moved so where is it? my speedo works fine and trany shifts perfect. i just have a abs & check engine lights??? maryland state inspection won't pass with abs light. check engine light doesn't mater. any help would be great! thanks

Recommend me some fluids

gmcdougal — 2009-09-25T18:12:27-08:00

I was thinking about going with valvoline maxlife ATF fluid for the tranny and transfer case and pennzoil full synthetic for the engine. Also was thinking about peak extended life antifreeze for coolant.Not sure about the differential oil yet. Anyone have any recommendations? Dont really have a ton of money to spend on fluids but dont want to get cheap stuff either. this is for a 2002 qx4 with 116k miles. Thanks

Modified by gmcdougal at 6:34 AM 9/23/2009

2002 qx4 leaning on drivers side

gmcdougal — 2009-09-21T11:35:29-08:00

Ive done some research and it appears when the qx4 is doing this it needs new springs. My question is where can i find these springs? Ive looked at several sites and nobody carries springs. Also, should i replace shocks and other suspension components when i replace the springs? The vehicle rides decent until you hit some bumps and then it just feels like it cant handle them, it makes the whole car move. Im guess this is all suspension/spring related. if im wrong someone please point me in the right direction to get this problem fixed. vehicle has 116k miles.

2002 QX4 Maintenance

gmcdougal — 2009-09-21T11:37:43-08:00

recently bought a 2002 qx4 with 115000 miles. I want do change tranny fluid, transfer case fluid, and the coolant. Which type of fluids should i use? Also, if there is anything else i missed that i should do please let me know. The service record book for the card isnt filled out so id rather do things that may have already been done. Vehicle runs great, just want to be on the safe side.

Just fialed the Nevada Emissions Check

infiniti dude — 2009-10-13T17:00:43-08:00

My 97 QX4 just failed the Nevada smog check the other day. The check engine light came on and is giving the p1447 code. I know it's the evap control system but I've been thinking of just resetting the ecu. If that happens and even after the driving patterns have been done will the check engine light come right back on if the problem isn't fixed. I'm low on dough so I'm trying to find the cheapest way to get through the inspection.

water pump squeal 1990 m30

redskinfromglenwood — 2009-09-20T20:07:42-08:00

i replaced my alternator and now my water pump squeals. if i loosen the belt the squeal stops but the alternator stops charging. after driving a short distance the squeal stops but starts again if i turn the engine off and back on. no antifreeze leak from the pump. is the pump bad or is something else afoot? thanks for any suggestions.

Question about o2 sensors and 1990 Q with 1995 engine.

mattd1979 — 2009-09-16T21:09:30-08:00

I posted a while back about a 1990 Q with a 1995 engine that had bad o2 sensors. Well, I'm now in the process of replacing those sensors and have found that they had been updated about 3 times since 1990 and so I wanted to know if there would be a problem with installing o2 sensors for a 1990 engine into a 1995 engine? For some reason, the right o2 sensor had been updated throughout the US VH45 model run yet, the left side remained unchanged.

Matt

WIRING GODS, quick foglight troubleshoot, with pics

longhornsqx4 — 2009-09-17T22:17:37-08:00

So in my 01 Qx4. Ive got a problem that is KILLING me, as I recently moved into the mountains, foglights are a MUST at night time, so this is a safety issue for me aswell. When I switch my foglights on (dial on the left side stock coming off the steering column). My drivers side fog turns on fine, but my passenger side illuminates the amber orange bulb, not the H3 bulb.

Looks like this

So I figured the H3 bulb might just not be getting power, so I took the fogs out and probed both solid red wires going to the H3 bulbs on both driver and passenger side, drivers side has 10.99Volts, passenger had 10.65Volts. So both bulbs are getting power.....

You can see in the pics where I cut the wire back to test

I noticed that both harness connectors were the same, so I swapped the drivers side housing over to the passenger side and vice versa, and still the passenger side foglight didnt turn on and the amber bulb lit up.

So that tells me that it has nothing to do with the foglight housing or the wiring on either, but the 3 wires going into the passenger side connector are sending bad signals??

I should also mention that the blinker turn signal on the passenger side works just fine....

Is there a simple fix for this??? The only thing I could think of, was to cut the green/red wire (assuming its the amber power wire) before enters the harness connector on the passenger foglight and tap it into the orange/grey (assuming its the foglight power wire)

But then I assume I wouldnt have a passenger side turn blinker EVER

Id love to know whats going on here, I suspect it may be faulty wiring in the stock, but its ridiculously expensive and Im simply looking for a cheap fix that will be safe. appreciate any help

Modified by longhornsqx4 at 2:11 PM 9/15/2009

Possible problem with dash temp gauge

mattd1979 — 2009-10-09T23:06:58-08:00

I decided to hook up my laptop to my car since it was in there and while the engine was running, I noticed that the dash temp gauge was reading just under the half mark but on the computer, it shows that the engine was running at 217 degrees with an outside temp of 84 degrees.

Modified by mattd1979 at 12:54 AM 9/12/2009

My AT LIGHT FLASHES WHEN MY CAR IS RUNNING!

thall1967 — 2009-09-12T08:37:49-08:00

I have a 1993 J30T. When I start my car within 8 seconds my amber AT light flashes. When I put the car in gear, it has a rough take off. [IMG][/IMG]

Q45tech, in regards to dealer consult power balance test.

mattd1979 — 2009-09-22T21:07:29-08:00

Do you think that when you have the opportunity during a power balance test on a G50, could you check and see weather or not the Consult performs the power balance test by shutting off each fuel injector or does it shut off each spark plug to get the power balance figures? Thanks

Matt
Jacksonville, FL

04' G35 AT, P507---online mechanics, need advice

510SX — 2009-09-07T12:50:26-08:00

I've changed the spark plugs, cleaned the TB(I know... but it's too late now). P507 code keeps popping up. I've gone thru the ECU reset, throttle valve closed position and idle air volumn learning procedures...., the car drives better, but only last several miles and the code came back.

The symptom is when I let go the gas while I am crusing, the RPM drops 300-400 and immediately raised up. Also, when I am braking, the car always want to give me an extra push. I bought a brand new TB from the dealer few days ago, but didn't solve the problem.

Questions I have is, besides ECU reset, throttle valve closed position and idle air volume learning. what other procedures I have to do? Is there any calibrations I am not aware of?

2003 FX45 - dies while driving as if ignition was suddenly disabled

ericthered — 2009-10-25T00:46:26-08:00

I am staying with my brother in law - I was picked up at the airport in his FX45. One mile from home his it died. Simply going up a hil at a steady pace, and the engine stopped, and dash lights came on. Adter multiple attempts to restart with and without the remote, it never restarted. It was just towed in.

Earlier today the FX was picked up from the local dealer for the second time for exactly this same problem - towed in both times dead. At first it was blamed on the battery (which they replaced) and then on the gas. When they picked it earlier today - it died a third time. However, after it restarted before the tow truck got there, and was driven back to infiniti. They then said it was that the key sent a "negative signal" that turned off the engine.

So now it has died four times for the same reason, and been towed back three times.

Any idea what is up, or how to deal with this? The FX has only 44K and is otherwise in immaculate shape.

thanks for any help.

Buzzing, creaking, and...Texas chain guides

Photo_Puri — 2009-09-03T08:17:51-08:00

Having a few different interesting problems with a '92 Q45.

First, a problem I'm noticed when backing out of the driveway...just the driveway. In reverse when the front wheels hit the lip of the concrete (it dips an inch or so and then it's all pavement from there) there's a low buzzing noise, a little tension on the brake pedal, and light vibration on the floor boards. The car still works properly before during and after this happens; nonetheless, it's kind of frightening. I assume it only happens when backing out of the driveway due to the concrete lip.

Another thing, probably minor and more of an annoyance: When driving at low speeds (about up to 35 I believe) I get a funny noise particularly on the front passengers size (lightly and only occasionally on the drivers size). Hard to explain the sound exactly, like a rolling/creaking noise in just general driving or when the wheels go over minuscule bumps or dips. You can feel it lightly on the floor boards too, like something lightly touching/rolling for a second. No similar issues on rough roads at faster speeds. This may just be a suspension issue of some type, but I figured I would ask since I'm sure someone else has run in to this issue before.

Lastly, any recommendations for chain guide replacements in Texas? Need a trusty mechanic, central Texas would be most ideal, I live just outside Austin.

And of course, I did my best to search these issues before asking. A little hard to locate answers if you're as baffled as I am though.

Q45 Infiniti Stage 3 ECU ((will it work on a 94 Q45)

Q45dude — 2009-08-24T08:34:09-08:00

will it?

Plenum Removal Question (90 Q45)

frenetic — 2009-09-02T10:28:36-08:00

Does the EGR valve need to be disconnected to remove the plenum? I'm not able to tell exactly by looking at it, but it looks like a pain to remove so I'd like to skip it if possible. Can I just disconnect the pipe coming from the rear of the engine bay, like in the pic below?

02 qx4 prolems with coolant,abs and 4wd. please help

nje39 — 2009-08-21T07:49:05-08:00

Hi guys,

I just purchased an 02 qx4 and I am having the following problems

1. the other day after i parked it the radiator was gurgling and spewing out coolant from the resovoir.

2. Intermintently the abs and 4wd drive lights come afetr driving it for a bit. Even tho the car is not engaged in the 4wd drive.

It drives and sounds normal. What could this be?

this seems to happend after i drive for 15 minutes or so. Please help!

Thanks in advance

96 I30 idles great, will not drive

todddavis2000 — 2009-08-20T04:13:02-08:00

have a 96 I30. thats driving me crazy! It will idle perfectly, but when i rev the engine, it starts knocking, pinging, and will not go above 2000 rpm at best. It will not drive, totally unable to pull. the following are facts that led up to this problem....
1. the check engine light would come on periodically, and has had a little hesitation/ missing at certain throttle positions
2. started noticing a very small hissing sound
3. auto zone said the CEL indicated the knock sensor and the EGR valve
4. days later noticed the hissing sound was very loud, filled up at gas station
5. the following day, noticed loss of power when going over mountain
6. 30 miles later, was only able to go 50 mph when going over mountain
7. 10 miles later, lost complete power, would idle but wouldnt pull
8. discovered hose from ERG valve to vacuum modulator was busted, replaced but did not help
9. replaced spark plugs. air filter and fuel filter, no luck
10. replaced MAFM, no luck
11. idled half the gas out of tank, replaced with fresh gas, no luck
the exhaust has a smell of gas indicating its running rich. Any suggestions? Could a faulty or plugged ERG valve cause this problem???

Lower Control arm

Bigmoe1315 — 2009-08-18T11:17:30-08:00

I was wondering was there any sites that sell a lower control arm for a 99 Q45

1990 Q with 1995 Q engine has issue with tach and also stumbles at accel.

mattd1979 — 2009-08-31T18:33:15-08:00

I have a problem with a Q that my Mom owns that use to be my nephews. What happens to start with is when you first start the car, the needle on the tach will jump to 5,000 and bounce as it comes back down to 800 rpm. This all happens as the engine starts and the engine seems to bounce along with the tach although it isn't turning 5,000 rpm when it first starts. It will also start to hunt as the needle on the tach bounces while accelerating from a stop until you get to your cruise speed. If you put it to the floor, it will surge until it passes 2700 rpm then it smooths out. I replaced the instrument cluster with another known working unit, but it still does the same thing with the replacement tach. It doesn't always do this. It only seems to do it about 70% of the time. The other 30%, it starts up and drives just fine. This all started to happen about 6 months after I did the engine swap. Does the Tach get it's signal from the CAS?

brake sensor an lucas oil

nayshean1 — 2009-08-19T22:04:48-08:00

i replaced my brakes two days ago and replace the wear sensor but i cannot get the "brake pads worn" warning off my dashboard indicator is there something i can do to fix that? an also about the lucas oil stabilizer i have read many threads on this subject but no one every said directly that using lucas oil stabilzer is safe to use, so if it is good to use at my next oil change im going to use it with mobil 1. oh p.s. my car is a 94 infiniti q45t w/ 160k miles

AC Question: Is AC oil removed when system is vacuumed

dsagers — 2009-08-14T10:44:11-08:00

I am about to add the oil to my 1994 Q45 AC system after replacing the compressor and flushing the system, and a new receiver dryer.

A local shop has a real nice AC machine to pull a strong vacuum for half an hour or longer if I want. Wondering how much oil will be sucked out of the AC system when its vacuumed?

1997 Q45 Fuel system diagnosis

coolz28 — 2009-08-11T16:27:41-08:00

My Q45 was running great when I parked it 4 weeks ago. Now it cranks but won't start. After spraying starting fluid in the air box the car starts for 5 seconds then dies so I assume it is the fuel system. All of the fuses are good. I need to know where the port is to hook up my fuel pressure guage and what are logical steps to diagnose the system. Thanks.

a/c will not turn off

silkysmoothyjud — 2009-10-25T13:03:26-08:00

1994 q45, I did a search.... I have to pull the fuse or relay to get it to stop: a/c system will run without the blower motor on. I just replaced the belt and pulley. I was running w/o for a while. Hooked it back up and shazam, ghetto rig in full effect. Any suggestions would be greatly appreciated.

need help: having problems with 2004 infiniti Q45 cd changer

datnphotboul — 2009-08-07T13:04:11-08:00

Im having problems with my cd changer. The cd changer is not working and it dont wanna read the cd....how do i fix this

oil leak by oil pan any ideas

newI30owner — 2009-08-28T09:23:59-08:00

alright it was leaking when i got the car because whoever did the gasket on it only used some RTV type stuff and it was leaking so i replaced the lower oil pan gasket and thought it was fixed but i still have a leak. filter is tight and i think it may be caoming from that sensor right there by the filter? does that make any sense? bottom of the pan is dry, there oil on the filter but theres a little bit of oil on the drivers side rear of the pan but not much. any ideas? all i used was the gasket, no rtv at all.
thanks for the help

Speed Sensor trouble

dherrera83 — 2009-08-04T13:42:27-08:00

I have a 96 Infiniti J30 and check engine came on a few weeks ago and as if it was a curse i need to go pass emissions and the OBD2 says its the speed sensor but I have changed it and still no luck it came on about 30 min after I replaced it . Now questions I had and needed help on, does this car have just one sensor on the transmission or is there an input and output sensor located where i can work on it . Thank you in advance for your help.

Replacing Vehicle speed sensor on 91 Q45

pahrding — 2009-08-02T18:47:03-08:00

This should be a no brainer, but I am trying to replace the speed sensor which plugs into the transmission housing near the back. Removing the actual sensor is no problem, but the wiring from it goes up into the propshaft tunnel somewhere and I cannot feel the connector on the end of it. Access is difficult as I can only get the car up high enough to crawl underneath and grope around. Does the connector finish up inside the car itself, if so how can I get at it?