2002 Q45 No Spark

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howiem
Posts: 13
Joined: Mon Aug 17, 2009 3:59 pm
Car: 2002 Q45, 2001 Maxima

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Hello forum, I hope someone can help out here. My '02 Q with 109,000 miles was running flawless until two days ago, now it wont start. I pulled the fuel rail to veryify the injectors were getting gas and yes, they are. I then pulled two coil pack to verify spark and was disappointed, no spark. What would cause the car not to fire? Unfortunately I do not have a code scanner, is there a way to manually pull the codes?

Thanks so much,HM


maxnix
Posts: 22627
Joined: Mon Jul 22, 2002 8:11 pm
Car: 1995 Infiniti Q45
1995 Infiniti Q45t
2000 Infiniti Q45

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Yes, there is a procedure in the FSM, but much easier to pull using a scanner.

Not sure where the ignitiors are on the VK45DE, but should be detailed in FSM.

http://www.nicoclub.com/FSM/Q45/

Q45tech
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Car: 1990 Q45 342,400 miles 22 years ownership with original engine
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Ignitors are integrated within each coil as they have been since 1996.

howiem
Posts: 13
Joined: Mon Aug 17, 2009 3:59 pm
Car: 2002 Q45, 2001 Maxima

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Q45tech wrote:Ignitors are integrated within each coil as they have been since 1996.
Do you have any ideas as to why I would not be getting spark?

SleepinTXQ45
Posts: 18
Joined: Sun Mar 08, 2009 4:49 am
Car: 1994 Infiniti Q45

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well that can be multi reasons. ive seen coils back feed or internal failer to where non work, could be other sensors. really needs to have a scanner(good one) to get further in it....any codes 7 u tested multi coils? fuses bad... what im getting to is its a complex set-up that has a lot of possible things. i do know nissian had crank sensor issues but they would start with a cam sensor. so really something like this is hard to pin point over the phone so to speak.... sorry. best thing is get it scanned 4 codes if nothing else or that 2 a good known shop

howiem
Posts: 13
Joined: Mon Aug 17, 2009 3:59 pm
Car: 2002 Q45, 2001 Maxima

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SleepinTXQ45 wrote:any codes 7 u tested multi coils? fuses bad...
I don't understand what you're asking here. Just so you know I've tested all the fuses I could find, beside the battery and in the car, to the left of the emergency brake.
SleepinTXQ45 wrote:really needs to have a scanner(good one) to get further in it....
can you recommend a few? I would not know a good one from a bad one if it hit me in the head.

Thanks for taking the time to reply.

HM
Modified by howiem at 5:46 AM 8/19/2009

maxnix
Posts: 22627
Joined: Mon Jul 22, 2002 8:11 pm
Car: 1995 Infiniti Q45
1995 Infiniti Q45t
2000 Infiniti Q45

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Look at the Actron line for starters. Not the cheapest ones.

Summit Racing has one that runs on a laptop with cables for ~$200.

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bullittandy
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Location: Atlanta
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If you're clever enough to pull a fuel rail and coil then you're clever enough to choose a scanner. There has to be a code and there is no way you're going to find it without a scanner.

howiem
Posts: 13
Joined: Mon Aug 17, 2009 3:59 pm
Car: 2002 Q45, 2001 Maxima

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maxnix wrote:Look at the Actron line for starters. Not the cheapest ones.

Summit Racing has one that runs on a laptop with cables for ~$200.
I called my local parts store (Advance Auto) and they have it in stock for $187.00. A little higher that I was expecting so I checked ebay and found it for $139.00 shipped.

I really appreciate your help.

HM

howiem
Posts: 13
Joined: Mon Aug 17, 2009 3:59 pm
Car: 2002 Q45, 2001 Maxima

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bullittandy wrote:If you're clever enough to pull a fuel rail and coil then you're clever enough to choose a scanner. There has to be a code and there is no way you're going to find it without a scanner.
bullitandy, thanks for having faith it me but I always rather play it safe and ask for help rather that make a costly mistake.

You guys and gal's are the best.

Thank you,HM

maxnix
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1995 Infiniti Q45t
2000 Infiniti Q45

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howiem wrote:
I called my local parts store (Advance Auto) and they have it in stock for $187.00. A little higher that I was expecting so I checked ebay and found it for $139.00 shipped.

I really appreciate your help.

HM
But which one? You will want one of the medium and not basic models once you review the capabilities on the Actron website. There are other brands also.

howiem
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Car: 2002 Q45, 2001 Maxima

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It's the Actron AUTOSCANNER PLUS unit.

maxnix
Posts: 22627
Joined: Mon Jul 22, 2002 8:11 pm
Car: 1995 Infiniti Q45
1995 Infiniti Q45t
2000 Infiniti Q45

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That should work. I think Sears had that on sale for $100 a couople of weeks ago.

howiem
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Car: 2002 Q45, 2001 Maxima

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Oh wow, too bad I misses it, they're back to $179.00

qship96
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Car: 1996 Infiniti Q45

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I have the CHEAPIE Actron "Pocket Scan" model, paid about $49 for it from one of the big autozone/advance/pepboys/trak stores- it is basic and gets the job done= read codes and erase codes....serves my purpose without overspending for an item that gets so little use with a well maintained Q{ in 232,000 miles, my check engine lamp has illuminated only 3 times, TOTAL}

howiem
Posts: 13
Joined: Mon Aug 17, 2009 3:59 pm
Car: 2002 Q45, 2001 Maxima

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qship96 wrote:I have the CHEAPIE Actron "Pocket Scan" model, paid about $49 for it from one of the big autozone/advance/pepboys/trak stores- it is basic and gets the job done= read codes and erase codes....serves my purpose without overspending for an item that gets so little use with a well maintained Q{ in 232,000 miles, my check engine lamp has illuminated only 3 times, TOTAL}
That's very good to know. After pulling the codes with your scanner where do you locate the definitions?

Thanks for chiming in.

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yodawill2000
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google "ODB2 Codes"

Universal thing.

SleepinTXQ45
Posts: 18
Joined: Sun Mar 08, 2009 4:49 am
Car: 1994 Infiniti Q45

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still though codes or not u need to fined out way ur not getting spark as injector pulse, fuel pressure,ect. just find out what codes are im sure one of us will beable to lead u in the correct direction

maxnix
Posts: 22627
Joined: Mon Jul 22, 2002 8:11 pm
Car: 1995 Infiniti Q45
1995 Infiniti Q45t
2000 Infiniti Q45

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howiem wrote:
That's very good to know. After pulling the codes with your scanner where do you locate the definitions?

Thanks for chiming in.
THe FSM.

One needs to understand which codes are accessible to each scanner tool.

Some scanners store the codes, others even graph.

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Infinitiguy19
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1994 Infiniti Q45a 240000 Miles

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howiem
Posts: 13
Joined: Mon Aug 17, 2009 3:59 pm
Car: 2002 Q45, 2001 Maxima

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Ok, so today on my way home from work I picked up a PocketScan Code Reader and pulled a P0335( Crank Position Sensor A Circuit Malfunction). My question now is, where on a 02 Q45 do I find this part?

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Infinitiguy19
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1994 Infiniti Q45a 240000 Miles

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Hate to say it but its been pointed out before: http://Nicoclub.com/FSM.

howiem
Posts: 13
Joined: Mon Aug 17, 2009 3:59 pm
Car: 2002 Q45, 2001 Maxima

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Paul Wall wrote:Hate to say it but its been pointed out before: http://Nicoclub.com/FSM.
Really? Sorry but I re-read through all the threads and nothing, still searching.

Thanks

qship96
Posts: 6624
Joined: Sun Nov 24, 2002 11:31 am
Car: 1996 Infiniti Q45

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howiem wrote:Ok, so today on my way home from work I picked up a PocketScan Code Reader and pulled a P0335( Crank Position Sensor A Circuit Malfunction). My question now is, where on a 02 Q45 do I find this part?
After you identify the crank position sensor, be sure to check the electrical plug{ connector} it may be loose or disconnected, especially if you or your mechanic has recently done any engine work or oil/filter changes.

qship96
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Joined: Sun Nov 24, 2002 11:31 am
Car: 1996 Infiniti Q45

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howiem wrote:
Really? Sorry but I re-read through all the threads and nothing, still searching.

Thanks
Open the link in the above post from Paul Wall and you will have access to the entire factory service manual for your Q.....with pictures and instructions on how to troubleshoot your problem based on your trouble code!!!!!

howiem
Posts: 13
Joined: Mon Aug 17, 2009 3:59 pm
Car: 2002 Q45, 2001 Maxima

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Call me blind but I opened ever pdf and did a search by using "control F" and could not find nothing regarding the location of the crank position sensor. Help.


qship96
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Car: 1996 Infiniti Q45

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Paul Wall wrote:Hate to say it but its been pointed out before: http://Nicoclub.com/FSM.
Just click on the above underlined link, and select your year Q45 from the choices and click on it to open it!!!!

howiem
Posts: 13
Joined: Mon Aug 17, 2009 3:59 pm
Car: 2002 Q45, 2001 Maxima

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qship96 wrote:
Just click on the above underlined link, and select your year Q45 from the choices and click on it to open it!!!!
I think I found it, I guess I was blind. I think it's on the block. It's late now so I'll get back on it tomorrow after work.

Thanks for ALL the help fellas.

howiem
Posts: 13
Joined: Mon Aug 17, 2009 3:59 pm
Car: 2002 Q45, 2001 Maxima

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I'm back on the road again I was able to locate the Crank Position Sensor, it's under the car on the bell-housing between the enging and the transmission. I hope someone will find this info helpful. Thanks to everyone who tried to assist.

HM


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