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2010 Camaro SS misfire #3

  • 10CamaroSS
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8 years 1 week ago #20501 by 10CamaroSS
2010 Camaro SS misfire #3 was created by 10CamaroSS
Hi, New here. I have a 2010 Chevy Camaro SS auto. that has a misfire (p0303). I have changed the coils around, spark plug. What else can I test (and how) with basic hand tools? I am also getting some rear O2 codes that are suppose to be tuned out, but won't go away (p0036 and p0056, I believe). Thanks for any help!

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8 years 1 week ago #20502 by 10CamaroSS
Replied by 10CamaroSS on topic 2010 Camaro SS misfire #3
The reason they are tuned out is for long tube headers and hi flow cats.

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  • cheryl hartkorn
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8 years 1 week ago #20503 by cheryl hartkorn
Replied by cheryl hartkorn on topic 2010 Camaro SS misfire #3
you might have carbon build upon the back of the valves if this is a gdi system.

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8 years 1 week ago #20511 by 10CamaroSS
Replied by 10CamaroSS on topic 2010 Camaro SS misfire #3
Thanks for the reply Cheryl. No it is not GDI

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8 years 1 week ago #20512 by 10CamaroSS
Replied by 10CamaroSS on topic 2010 Camaro SS misfire #3
It has 35,000 miles. If that helps!?!?

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  • Chad
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8 years 6 days ago #20538 by Chad
Replied by Chad on topic 2010 Camaro SS misfire #3
Have you checked the fuel injector? You can compare resistance between injectors.
"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. :-)

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  • cheryl hartkorn
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8 years 6 days ago #20546 by cheryl hartkorn
Replied by cheryl hartkorn on topic 2010 Camaro SS misfire #3
better yet an injector balance test if you have the tools to do it

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  • 10CamaroSS
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8 years 5 days ago - 8 years 5 days ago #20562 by 10CamaroSS
Replied by 10CamaroSS on topic 2010 Camaro SS misfire #3
Is that something I can do on HPTuners?
Last edit: 8 years 5 days ago by 10CamaroSS.

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