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2003 Nissan 350z 3.5 I'm having a misfire on cylinders 2,4 and 6 with a p300
- romeo.resendiz
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4 years 11 months ago #29626
by romeo.resendiz
2003 Nissan 350z 3.5 I'm having a misfire on cylinders 2,4 and 6 with a p300 was created by romeo.resendiz
Hi there thank for your help in advance.
As the title says I have a problem at a 2003 Nissan 3.5 p300 code.
By doing a cylinder drop test found
Misfire at 2,4 and 6.
There is good comprehension,
Spark, injectors are opening,
Also check for back pressure at exhaust and it seems fine.
I'm running out of ideas
Next test will be check the timing chain.
but I'm not sure about that because of the good compression.
Does someone have or can hand me a good cam and crank correlation capture for this engine.
Any thoughts will be helpful thanks a lot
As the title says I have a problem at a 2003 Nissan 3.5 p300 code.
By doing a cylinder drop test found
Misfire at 2,4 and 6.
There is good comprehension,
Spark, injectors are opening,
Also check for back pressure at exhaust and it seems fine.
I'm running out of ideas
Next test will be check the timing chain.
but I'm not sure about that because of the good compression.
Does someone have or can hand me a good cam and crank correlation capture for this engine.
Any thoughts will be helpful thanks a lot
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4 years 11 months ago - 4 years 11 months ago #29630
by Chad
"Knowledge is a weapon. Arm yourself, well, before going to do battle."
"Understanding a question is half an answer."
I have learned more by being wrong, than I have by being right.
Replied by Chad on topic 2003 Nissan 350z 3.5 I'm having a misfire on cylinders 2,4 and 6 with a p300
"Knowledge is a weapon. Arm yourself, well, before going to do battle."
"Understanding a question is half an answer."
I have learned more by being wrong, than I have by being right.
Last edit: 4 years 11 months ago by Chad.
The following user(s) said Thank You: Andy.MacFadyen
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4 years 11 months ago #29635
by guafa
Replied by guafa on topic 2003 Nissan 350z 3.5 I'm having a misfire on cylinders 2,4 and 6 with a p300
Hi romeo,
Do you have information about O2 voltage activity and fuel trims?
Those could give us a clue.
Do you have information about O2 voltage activity and fuel trims?
Those could give us a clue.
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4 years 11 months ago #29640
by romeo.resendiz
Replied by romeo.resendiz on topic 2003 Nissan 350z 3.5 I'm having a misfire on cylinders 2,4 and 6 with a p300
Thanks a lot
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4 years 11 months ago #29641
by romeo.resendiz
Replied by romeo.resendiz on topic 2003 Nissan 350z 3.5 I'm having a misfire on cylinders 2,4 and 6 with a p300
Guafa. No I don't I will take some shots.
But now I'm suspended on a bad engine because cylinder 2 seems to have combustion but 4 and 6 doesn't
At all,
If I pull spark plugs they are clean as new just little of oil
But all the others I can see combustion on them.
My be oil rings or head gasket
But now I'm suspended on a bad engine because cylinder 2 seems to have combustion but 4 and 6 doesn't
At all,
If I pull spark plugs they are clean as new just little of oil
But all the others I can see combustion on them.
My be oil rings or head gasket
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4 years 11 months ago #29685
by romeo.resendiz
Replied by romeo.resendiz on topic 2003 Nissan 350z 3.5 I'm having a misfire on cylinders 2,4 and 6 with a p300
Thanks guys for your help.
And to anyone that ever have this similar problem the solution was
Cylinders 4 and 6 connectors were plug wrong
4 was on 6 and 6 on 4
They were firing nowhere near TDC
I guess whenever they replace the spark plugs they did that
Car was park for 2 years until today
And to anyone that ever have this similar problem the solution was
Cylinders 4 and 6 connectors were plug wrong
4 was on 6 and 6 on 4
They were firing nowhere near TDC
I guess whenever they replace the spark plugs they did that
Car was park for 2 years until today
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4 years 11 months ago #29686
by PDM
Replied by PDM on topic Re:2003 Nissan 350z 3.5 I'm having a misfire on cylinders 2,4 and 6 with a p300
That’ll do it every time. Lol
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- romeo.resendiz
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4 years 11 months ago #29687
by romeo.resendiz
Replied by romeo.resendiz on topic Re:2003 Nissan 350z 3.5 I'm having a misfire on cylinders 2,4 and 6 with a p300
Haha exactly
Good thing about everything is now I do have a 350z with 109 miles for a very good price.
And the most important thing now I have this very useful knowledge
Good thing about everything is now I do have a 350z with 109 miles for a very good price.
And the most important thing now I have this very useful knowledge
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4 years 11 months ago #29689
by guafa
Replied by guafa on topic 2003 Nissan 350z 3.5 I'm having a misfire on cylinders 2,4 and 6 with a p300
Unbelievable,
How did you realize that?
How did you realize that?
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4 years 11 months ago #29691
by romeo.resendiz
Replied by romeo.resendiz on topic 2003 Nissan 350z 3.5 I'm having a misfire on cylinders 2,4 and 6 with a p300
Well CHAD send me the correlation between cam and crank check that it tells me a lot about the good condition of the timing.
Plus I have already checked every single thing as
Compression, spark injection pulse.
I even switch spark plugs, injectors coils from good known cylinders and nothing.
There where no signs of combustion every time I removed the spark plugs from 4 and 6.
And I was also able to look the top of the cylinders they were a little washed out because of the fuel.
Also remembered a video from scannerdane of a Ford scape that had the same problem connectors
were plug incorrectly.
And every thing brought me the solution
Wish I knew this before but it really makes feel good to know I done it I solved the problem.
And you guys are awesome thanks for your help and I'll be around here to learn more and to help if possible
Plus I have already checked every single thing as
Compression, spark injection pulse.
I even switch spark plugs, injectors coils from good known cylinders and nothing.
There where no signs of combustion every time I removed the spark plugs from 4 and 6.
And I was also able to look the top of the cylinders they were a little washed out because of the fuel.
Also remembered a video from scannerdane of a Ford scape that had the same problem connectors
were plug incorrectly.
And every thing brought me the solution
Wish I knew this before but it really makes feel good to know I done it I solved the problem.
And you guys are awesome thanks for your help and I'll be around here to learn more and to help if possible
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4 years 11 months ago #29692
by Andy.MacFadyen
" We're trying to plug a hole in the universe, what are you doing ?. "
(Walter Bishop Fringe TV show)
Replied by Andy.MacFadyen on topic 2003 Nissan 350z 3.5 I'm having a misfire on cylinders 2,4 and 6 with a p300
Good catch
" We're trying to plug a hole in the universe, what are you doing ?. "
(Walter Bishop Fringe TV show)
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