Quote:
Originally Posted by gobagheera
Wow, didn't even notice that 500rpm tick. Thanks. I would have never known. Wish they would have made the tick distances proportional to make it clear what rpm it was at.
So I guess it was going from 500 to 750 rather than 0 to 500 that I thought. I'll try the tips above to see if I can stablize the idle still.
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Basically all of our cars idle at 680-700 - Even when the idle seems erratic it holds in that range. That is where the PCM keeps it. Take one plug wire off and it will still idles in that range. The PCM via the IAT and timing advance keeps it in that range.