Originally Posted by
zaut
EagleMark, You may be correct with the IAC Valve. I finally got a PC connected to the car. The target idle was 600 rpm and the engine was running at 850 - 900. The IAC count was 59. I shut the car off and restarted and the idle went down to 600 and counts were 37. When the IAC hangs, does the counts hang as well? I would think the ECM would pulse the IAC to change and count those pulses, regardles if the valve moves or not. I did not think the IAC gave any feedback of its actual position.
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