86subaru Posted August 1, 2008 Share Posted August 1, 2008 i cleaned the idle air control with sea foam, it was fine for about a week, now hi idle in park, and car is warmed up, ?? thanks Link to comment Share on other sites More sharing options...
lmdew Posted August 1, 2008 Share Posted August 1, 2008 Make sure the cable is not tight on the throttle. You may have to clean the IAC again. Link to comment Share on other sites More sharing options...
86subaru Posted August 1, 2008 Author Share Posted August 1, 2008 ok, reading that the coolant temp could cause this also, Link to comment Share on other sites More sharing options...
mellow65 Posted August 1, 2008 Share Posted August 1, 2008 i was thinking temp sensor, as in it's dying but not dead. like when it warms up the resistants in the sensor changes back to what it is at cold and gives you a high idle. that was the first thing i thought of. Link to comment Share on other sites More sharing options...
Gloyale Posted August 2, 2008 Share Posted August 2, 2008 Idle switch in the Throttle Position Sensor. Easy to test if it is closed contact when the throttle is closed. +1 on checking the cable as well. Link to comment Share on other sites More sharing options...
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