Does Anyone have CEL on b/c of misfire?? P300
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From: Like I cares, CA
Does Anyone have CEL on b/c of misfire?? P300
Anyone here had the problem of the 350Z having a multiple cylinder misfire? That is what mine is doing and the car idles erratic. Other than the MIL for the multiple cylinder misfire and the bad idle the car runs fine. Let me know if anyone else has had this problem. The dealer sucks and cannot find the problem.
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From: Like I cares, CA
Originally Posted by z2g
Have you done any mods recently?
Not recently at all....except put on a new body kits......that's all....nth really new....and it has been like that since i got my car.....also i went to dealer for couple of time b4....they said it was fuel pump problem and got a new fuel pump. and then since it was almost out of warranty....so the last time, the damn dealer just said that i have aftermarket audio and bs out of their way.
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From: Like I cares, CA
Originally Posted by nis350zsan
could be your plugs or mass air i had this problem with my o5
i am just thinking about spark plugs rite now....or some leak air from the vaccum hose...but i really donno so that's why wanna ask u guys.
but thinking to get it done next week.
Originally Posted by ~SpInNeY~
i am just thinking about spark plugs rite now....or some leak air from the vaccum hose...but i really donno so that's why wanna ask u guys.
but thinking to get it done next week.
but thinking to get it done next week.
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i had a miss fire code. not sure if it was the same one, but i was at a race track doing some 1/4 miles and I kept turning the car on and off, due to the line and moving forward. as soon as i got to the line. the SES light came on. and it stated the "miss fire in multiple cylinders." It could have been 3 issues for me.
1. could have been from the line and turning the car on and off.
2. I installed an AAM or AMM (cant remember the exact abbreviation) throttle body spacer that has 3 vacuum spots. well 2 of my plug came out. i didn't know. I would notice that at idle, the tact would fluctuate really bad. sometimes it would even stall.
3. a combination of both.
i cleared the code, fixed the problem and never had it again.
hope that helps a little
1. could have been from the line and turning the car on and off.
2. I installed an AAM or AMM (cant remember the exact abbreviation) throttle body spacer that has 3 vacuum spots. well 2 of my plug came out. i didn't know. I would notice that at idle, the tact would fluctuate really bad. sometimes it would even stall.
3. a combination of both.
i cleared the code, fixed the problem and never had it again.
hope that helps a little
Thread Starter
Registered User
Joined: Jul 2008
Posts: 234
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From: Like I cares, CA
Originally Posted by jaspendlove
i had a miss fire code. not sure if it was the same one, but i was at a race track doing some 1/4 miles and I kept turning the car on and off, due to the line and moving forward. as soon as i got to the line. the SES light came on. and it stated the "miss fire in multiple cylinders." It could have been 3 issues for me.
1. could have been from the line and turning the car on and off.
2. I installed an AAM or AMM (cant remember the exact abbreviation) throttle body spacer that has 3 vacuum spots. well 2 of my plug came out. i didn't know. I would notice that at idle, the tact would fluctuate really bad. sometimes it would even stall.
3. a combination of both.
i cleared the code, fixed the problem and never had it again.
hope that helps a little
1. could have been from the line and turning the car on and off.
2. I installed an AAM or AMM (cant remember the exact abbreviation) throttle body spacer that has 3 vacuum spots. well 2 of my plug came out. i didn't know. I would notice that at idle, the tact would fluctuate really bad. sometimes it would even stall.
3. a combination of both.
i cleared the code, fixed the problem and never had it again.
hope that helps a little
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