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Posted by 805DSM, Oct 27, 2009
Newbie Forum - Beginner/newbie/general DSM modification questions. First mods, how to run 10's when you haven't run 12's yet, any tech question that doesn't fit in another tech forum.
Problem ended up being the exhaust cam was out of time by 1 tooth. So it couldn't hurt to double check your timing marks on the motor.
Simpler things to check would be IAC motor,and TPS sensor make sure they are both functional. They both adjust the idle and stability of the air coming through the throttle body into the manifold.
I assume you already did the "maintence" thing like you said, plugs, wires, air filter, fuel filter, oil change etc etc.
Could also check fuel injector o-rings. Im not sure how the PCV valve effects the non turbo 2.4 when its not functioning, but on my previous cars that were non turbo, a bad pcv has caused me some idle issues. Just some ideas hope you have some luck with it bud.
Yeah , I changed the PCV valve and did all the maintanance on it, when I got it it would idle good and normal , then hear and there it would
idle rough then it go back to normal. Now it's just idleing rough and running Rich at idle. I just need to check the timing marks