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throttle position switch functionality 200 1993

posted by  ronald on  Wed Dec 9 03:14 CST 2009
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last visit: Wed Oct 10 11:04 CST 2012
[RELATED]

I have a problem with a slight stumble while cruising at very low throttle, especially noticeable as you reduce pedal pressure while already at low throttle. I was wondering if the control logic was such that when the TPS shows closed throttle, that the IAC becomes active even when cruising at 50 mph, which might cause a momentary lean condition followed by a rich condition as the o2 sensor responds.

Ron






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