Question about 1987 Jeep Wrangler

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Idles fine 900 to 1000 but when just sitting there and give it gas to rpm of 2000 or more it will not come back down to idel speed, checked all vacumm lines seem to be fine did not check gaskets with carb cleanner as this motor just rebuilt, the other way of bringing it back down to idel is putting finger over pcv in a on off on off fasion then it comes back down . susspect that throttle electronic sensor not operator coorectly as the when the vaccumm is chocked off with pcv , the throttle senor backs down more then it idels proper or if you put the motor under load does the same

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TPS are notorious on these things for going bad, first thing I'd do is replace it or at least check it with a digital meter.

Posted on Mar 14, 2011

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