1992 Dodge Shadow Car Idling High

1992 DODGE SHADOW
146,000 MILES • 4 CYL • FWD • AUTOMATIC
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PLBIEGERT
  • MEMBER
  • 5 POSTS
My 1992 dodge shadow has been idling high around 2200 rpms. I have taken it in to a mechanic already who just cleaned idle air control sensor. The mechanic also informed me that if it happens again to replace the IAC which I did when it started to idle high again. After replacing the IAC the rpms dropped but went back up after a few miles. I then replaced the Throttle Position Sensor and still the same results. What else could cause it to idle high?
Apr 29, 2010 at 4:30 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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RASMATAZ
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 75,992 POSTS
Could be a vacuum leak or its locked-up in the open loop mode and computer throwing fuel at it when not needed or injector leaking/fuel pressure regulator
Apr 30, 2010 at 6:09 AM
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WILLPINSON
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  • 1 POST
What would cause a lock-up in open loop mode? A sensor? Bad connection? Or bad computer?
Nov 10, 2016 at 7:11 AM