Quote:
Originally Posted by ProjectM96
Update on rough idle problem: I cleaned the Idle Control Valve and Throttle Body. Before reinstalling them, I checked again for vacuum leaks since I had better access to the hoses. All hoses are in good condition seem to be aging well.
I know it is not the coils or spark plugs. I know it is not the ICV/Throttle Body. I know it is not a head gasket. Mechanic says it is not a vacuum leak and I could not find a vacuum leak using various methods.
Last possible thing I can think of that causes a rough idle is the MAF sensor, but it still does not make sense because a MAF sensor is supposed to cause a CEL and I do not have a CEL light On. Plus, my scanner says no codes found. Anyways, I will try to clean it and reinstall it when I buy MAF cleaner.
Can you guys think of anything else that causes rough idle?
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Yes my 2002 had the same problem that you are describing, it turned out to be the idler control. car runs fine now.
