Need some help.
I finally got my car back together....plenum job with all the hoses, 5 injectors replaced, did both of my valve covers, cleaning of TB EGR IAC and MAF.
What I thought started all this was a bad MAF connection, BTW.
Well I finally filled her up with fresh fluids and before I started it I pulled the injector fuse and fuel pump fuse to prime the oil pump (as suggested per Daedelus and Company from a previous post). Put the fuses back in, primed the fuel pump by turning to the key to ON position three times. Then I cranked it.
It didn't want to start, as expected. After she started and warmed up a bit I noticed some problems. First the check engine light came on. I could hear a hissing noise near the back of the plenum. And the idle was rough. It would not rev past 3000 RPM. In fact the same symptons of a bad MAF were still present.
Now I ran the ECU and got a code 55. I am not sure if that is right, I am going to try and check it again here in a minute.
When I would rev it, it seemed to kind of gurgle and then rev. Almost like a hesitation. It was fairly rough.
Also there was some smoke. From the exhaust a lot of white smoke, but also in the engine bay, smelled like oil. I just think it is from all the cleaners and what not used along the process and the car is just burning them off.
What do you guys think? I am stumped and very discouraged.
p.s. 92 Q45, 155K.... The car has a good amount of trouble starting, as well.
p.p.s new fuel pump as well, there is only 3 gallons of gas in there..... don't know if that matters or not, just thought I would add.
Car back running and it runs not good!!
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elwesso
- Posts: 30810
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- Car: 94 Infiniti Q45t 5 spd
2007 BMW M Coupe
2007 Infiniti G35 S 6MT - Location: Indiana
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I would check ALL connections....
When i did my plenum i left the connectors on the ignitor packs undone.....
CEL would most likely be MAF related..... As well as a vacuum leak...
Back of the plenum would leave it to be the brake booster hose, IAC 3 way hose, and that stupid hose just inside the IAC hose.....
My engine smelled like oily goo for a while.. no worries about that... it will all burn off....
When i did my plenum i left the connectors on the ignitor packs undone.....
CEL would most likely be MAF related..... As well as a vacuum leak...
Back of the plenum would leave it to be the brake booster hose, IAC 3 way hose, and that stupid hose just inside the IAC hose.....
My engine smelled like oily goo for a while.. no worries about that... it will all burn off....
I am still trying to figure out the whole CEL thing. Is that with a consult.
I have thought that one or many of the ignition coils are not in place and or on the wrong spark plug. Am I correct in saying that there is no way of knowing witch ignition coil goes to which spark plug, with exception of the #2 and #1?? I didn't check the ohms on them so that will have to be done.
When I reinstalled the plenum I had a whale of a time trying to get those back hoses on with the IAC and the inner one. I noticed the inner one (closet to front of car) was cracked at the top. So I got it on as best as possible and clamped the hell out of it.
Vacuum leak? I don't know about that one. I made sure I connected all of them so I wouldn't have any leaks. I had read your posts on that and prepared for it. How do you check for that? Are they just around the EGR and drivers side valve cover.
Again, I am uneducated in the CEL dept. And the reason I checked the ECU was cause of a check engine light which was not there before.
Thank you so much for replying Wes. I am on pins and needles watching these boards.
p.s. I figured out what CEL means. Check Engine Light. Now I know.
I have thought that one or many of the ignition coils are not in place and or on the wrong spark plug. Am I correct in saying that there is no way of knowing witch ignition coil goes to which spark plug, with exception of the #2 and #1?? I didn't check the ohms on them so that will have to be done.
When I reinstalled the plenum I had a whale of a time trying to get those back hoses on with the IAC and the inner one. I noticed the inner one (closet to front of car) was cracked at the top. So I got it on as best as possible and clamped the hell out of it.
Vacuum leak? I don't know about that one. I made sure I connected all of them so I wouldn't have any leaks. I had read your posts on that and prepared for it. How do you check for that? Are they just around the EGR and drivers side valve cover.
Again, I am uneducated in the CEL dept. And the reason I checked the ECU was cause of a check engine light which was not there before.
Thank you so much for replying Wes. I am on pins and needles watching these boards.
p.s. I figured out what CEL means. Check Engine Light. Now I know.
Coils 3-8 don't matter, they should all be the same. The harness matters, but it's so particular, it would probably be impossible to hook it up to the wrong coils. Definitely sounds like a vacuum leak. Get some WD 40 and mist it around the rear of the plenum where the noise is coming from. Watch the mist. The gurgling might just be air in the coolant. That can be worked out later. What does the white smoke smell like? I assumed you removed the fuel injector rail? Hopefully you don't have an injector leak.
No. I did not remove the injector rail. The smoke from the exhaust only lasted until the engine warmed up and smelled like oil and exhaust prettuy much, not too funky.
What would an injector leak entail? I have seen no sort of leaking either from fuel or coolant.... thank god!
My battery has since died and it is recharging right now. Should only take another 2 hours.
What really troubles me is the fact that it won't rev over 3k. It hits that like a brick wall.
I will do the wd40 trick and check for vacuum leaks just as soon as the battery is charged. Wes I will shoot you an e-mail later tonight. man I better not have no injector leak, oh lord.
What would an injector leak entail? I have seen no sort of leaking either from fuel or coolant.... thank god!
My battery has since died and it is recharging right now. Should only take another 2 hours.
What really troubles me is the fact that it won't rev over 3k. It hits that like a brick wall.
I will do the wd40 trick and check for vacuum leaks just as soon as the battery is charged. Wes I will shoot you an e-mail later tonight. man I better not have no injector leak, oh lord.
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elwesso
- Posts: 30810
- Joined: Sun Feb 23, 2003 4:52 pm
- Car: 94 Infiniti Q45t 5 spd
2007 BMW M Coupe
2007 Infiniti G35 S 6MT - Location: Indiana
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Engine speed will not rise above 3000 for the CAS... its 2000 for the MAF..
White smoke is normal.. What was the ambient temp???
Unfortunately, sounds like you got more than one problem, each somewhat overlapping...
I think I could help diagnosis over the phone.. I gotta help my brother in plenum, Q and NICO. TRIPLE THREAT!!
White smoke is normal.. What was the ambient temp???
Unfortunately, sounds like you got more than one problem, each somewhat overlapping...
I think I could help diagnosis over the phone.. I gotta help my brother in plenum, Q and NICO. TRIPLE THREAT!!
Code 21 and Code 11.
I just checked it (enough juice in batt to run some stuff, just not start it).
It was a windy 58 degrees today. I can call you tomorrow if you are free. Would tonight but my phones at my house are weird, too difficult to explain now.
I had a feeling the CAS was messed up. Had it diagnosed about a year ago and the dealer said it was suspect, not necessarily faulty, just a little suspicious.
I just checked it (enough juice in batt to run some stuff, just not start it).
It was a windy 58 degrees today. I can call you tomorrow if you are free. Would tonight but my phones at my house are weird, too difficult to explain now.
I had a feeling the CAS was messed up. Had it diagnosed about a year ago and the dealer said it was suspect, not necessarily faulty, just a little suspicious.
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elwesso
- Posts: 30810
- Joined: Sun Feb 23, 2003 4:52 pm
- Car: 94 Infiniti Q45t 5 spd
2007 BMW M Coupe
2007 Infiniti G35 S 6MT - Location: Indiana
- Contact:
Sounds about right..... 21 is ignition circuit, 11 is CAS
Wiggle and clean the connector to the CAS.. Make sure the things are clean.....
Ill be free tomorrow... My cell phone is having technical difficulties, its demon possessed, randomly calls people and stuff. Im using the battery unplugged trick on that as well..... Should be golden by tomorrow...
Wiggle and clean the connector to the CAS.. Make sure the things are clean.....
Ill be free tomorrow... My cell phone is having technical difficulties, its demon possessed, randomly calls people and stuff. Im using the battery unplugged trick on that as well..... Should be golden by tomorrow...
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Q451990
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Definately sounds like the MAF or CAS connection. The car is running in "safe mode" when it hits RPM ceilings like that. Recheck the connectors and see what happens...
If you have an injector leak the smoke will be dark (almost black). Squeeze the fuel line while the car is running, then after you turn it off. The pressure should not bleed down quickly. Did you lubricate the o-rings when you replaced the injectors?
Good luck!
Heath
If you have an injector leak the smoke will be dark (almost black). Squeeze the fuel line while the car is running, then after you turn it off. The pressure should not bleed down quickly. Did you lubricate the o-rings when you replaced the injectors?
Good luck!
Heath
Yeah, I know. I was just a bit frustrated that is all. Honestly, that is my ultimate goal. To make the holy trip to T3, I just didn't want to show up in jeans shorts and a nascar t-shirt if you know what I mean.
I filed the CAS connector and now it will rev above 3K. The idle is still rough, I will just have to tinker with that i guess.
I have identified the vacuum leak, it is one of the two hose in the back of the plenum, the IAC or the one directly behind it. Man, these things are sensitive. The hose is cracked at the top and more than likely I will need a new hose.
CEL didn't show this go around. Did another code check. Good ole code 34 and 21 showing. Knock Sensors and/or harness.
I will update later on the condition of the vacuum leak. Daedalus's wd40 trick worked nicely. anyways.....
I filed the CAS connector and now it will rev above 3K. The idle is still rough, I will just have to tinker with that i guess.
I have identified the vacuum leak, it is one of the two hose in the back of the plenum, the IAC or the one directly behind it. Man, these things are sensitive. The hose is cracked at the top and more than likely I will need a new hose.
CEL didn't show this go around. Did another code check. Good ole code 34 and 21 showing. Knock Sensors and/or harness.
I will update later on the condition of the vacuum leak. Daedalus's wd40 trick worked nicely. anyways.....
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Q451990
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Is the idle more of a "bouncing" feel? Did you have that feeling before you replaced the injectors? If so it's very likely that the spark plugs on the affected cylinders are fouled. During both of my injector failures, I found that the plug on that cylinder was fouled and the dead miss continued. I was able to clean the plug with some gasoline and a tooth brush and get it firing again. Brake parts cleaner would probably be better than gas...
Heath
Heath
No it is not bouncing really. More of a putt-putt sound and feel. putt putt putt putt putt, kinda like that. I put my hand over the exhaust and it putts out in sequence. I have new spark plugs, so right now i am adjusting the throttle cables and messing with the IAC.
I am giving all of this one more day and then T3 it is, there is so much more wrong with the car, ie; power steering leaks, cracked boots, steering racks, gunk everywhere, studs missing on rear tires., chain guides, etc. I am the third owner of the car and it was only in my possesion for a little under a year until I parked it, or it parked itself rater. I just didn't want to go into T3 and them think all this damage had been from my own negligence. Granted a years worth of it had, but the majority of the damage was done prior to my ownership. So I wanted to fix it up a bit, is that so wrong?
I am giving all of this one more day and then T3 it is, there is so much more wrong with the car, ie; power steering leaks, cracked boots, steering racks, gunk everywhere, studs missing on rear tires., chain guides, etc. I am the third owner of the car and it was only in my possesion for a little under a year until I parked it, or it parked itself rater. I just didn't want to go into T3 and them think all this damage had been from my own negligence. Granted a years worth of it had, but the majority of the damage was done prior to my ownership. So I wanted to fix it up a bit, is that so wrong?
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Q451990
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- Location: Columbia, SC
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Idle isn't that far off... I'm going to guess here and say that you have several injectors not working or leaking. Did you lubricate the o-rings when you replaced them? A not-so-easy check to see if they're sealed right is to pull the plenum and remove the fuel rail/injector assembly. Pressurize everything and see if any fuel squirts out around the tips where they come through the rail or around the caps on the top.
Just remember that if you have bad leaking into the cylinders you run the risk of flooding the engine and hydrolocking the cylinder (which means extensive damage).
Heath
Just remember that if you have bad leaking into the cylinders you run the risk of flooding the engine and hydrolocking the cylinder (which means extensive damage).
Heath
No I did not lubricate them. When I installed them I put the first o-ring in the rail and used a silcon spray to ease the installation. But as far as lubricating the o-rings themselves, no I did not do that.
I apologise for all this guys, I know the right thing to do is to take it in, but unless my money tree starts to bloom, it is just not going to happen.
your input is worth more than gold. it is knowledge, you can't put a price on something like that. thanks for everyones patience, I will get this fixed, one way or another. Ben
I apologise for all this guys, I know the right thing to do is to take it in, but unless my money tree starts to bloom, it is just not going to happen.
your input is worth more than gold. it is knowledge, you can't put a price on something like that. thanks for everyones patience, I will get this fixed, one way or another. Ben
I never did smell the exhaust directly, until now. I put my nose in position and was overwhelmed by the smell. It smelled rich with gasoline.
What exactly does that mean? I know it is injector related. But what is happening. Bad install on the injectors, pinched o-ring of sorts? Heath may have been on to something....
What exactly does that mean? I know it is injector related. But what is happening. Bad install on the injectors, pinched o-ring of sorts? Heath may have been on to something....
This is with the car warmed up? And absolutely stronger than normal? Car normally runs rich when cold. If yes, then yeah, probably a pinched oring. Which injectors did you replace? I would remove all 8 plugs to have a look at them and try to figure out which injector it is. If you're lucky it (they) will be #1, 2, 7 or 8.