1999 Dodge Caravan Engine Running at High Speed

1999 DODGE CARAVAN
123,000 MILES • 6 CYL • FWD • AUTOMATIC
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ERIC D
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  • 3 POSTS
Replaced plugs and wires. Removed throttle body, battery and plenum to replace rear plugs and wires. When the van is started the engines runs at high rpms and will not idle down. Throttle is closed but engine still runs wide open.
Sep 13, 2010 at 7:58 PM
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JACOBANDNICKOLAS
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Has the check engine light come on?
Sep 14, 2010 at 7:31 AM
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ERIC D
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  • 3 POSTS
Yes, The check Engine light comes on and the codes are PO122 and PO123 which are both for the TPS. Replaced the TPS and still have the same problem. Could this happen because the battery was removed from the van for a while?
Sep 14, 2010 at 10:50 AM
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JACOBANDNICKOLAS
  • CAR REPAIR CONTRIBUTOR
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That is odd. One is a high current and the other low. Have you checked wiring?
Sep 14, 2010 at 12:19 PM
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ERIC D
  • MEMBER
  • 3 POSTS
Got it fixed! It was the plenum gasket. Too much air. Replaced the gasket and all is fine
Sep 16, 2010 at 5:44 PM
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JACOBANDNICKOLAS
  • CAR REPAIR CONTRIBUTOR
  • 110,190 POSTS
Glad you got it fixed. Take care and let us know if you have questions in the future.
Sep 17, 2010 at 6:54 AM
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