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Old 02-08-2010, 07:52 PM   #1
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91 wrangler high engine idle

I have a 91 wrangler 4 cyl w/ MPI as the engine gets warmer the RPM's get higher. It will routinely idle at 2200-2300 at an intersection. I changed the throttle position sensor- no help.

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Old 02-08-2010, 08:41 PM   #2
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welcome to the forum, sounds like a vacuum leak possibly, you also have an idle air control motor on the other side of the tps that can stick and cause a hi idle.
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