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did you clean IAC and MAF ?
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No MAF on this car, but I did clean out the IAC, as well as some of the other sensors, like the IAT. I did take off the MAP sensor and noticed some thick, oily build-up in the MAP sensor hole on the intake and the MAP sensor port itself, and I cleaned that out as well.
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Sometimes the EGR valve will have a film buildup on the stem of the plug valve and shows as the plug valve sticking open. Working it open and shut finally loosens it up.
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I think this is what happened. I removed the EGR valve again last night, and sure enough a piece of carbon had wedged itself in between the pintle and the hole, causing it not to be able to close off completely. I noticed this when I replaced the CPI unit last week, but didn't think much of it at the time, but I did clean it out then. Now that another piece is lodged there, it looks like it's time to buy an EGR valve gasket with a screen.
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What do you see on the spark plugs now?
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I have not check the condition of any of the spark plugs yet, but I will shortly.