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idle
One thing I was told to check by a buddy at Nissan is the iac valve, he said these come in all the time with this. Take it off and soak the inside with B-12 carb cleaner and it fixes it right up. He said they are bad for carbon build up. My car did it with on 30k on it and only got worse175k now. Cleaned it and fixed. Blame this on stupid egr.
Also if the air tube from the vavle cover to the tb hose is run open filter at the valve cover, it can also cause this(did in a 96 200sx) don't know why?
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