The fact that the vehicle idles at 600rpm is worrying me. That is not right.
It is possible when they relearned the idle they did not do it properly. You vehicle is suppose to idle around 800rpm at operating temperature. To raise the idle up you must unplug the IACV motor and turn the idle screw up until you have hit 400-450rpm, then relearn the idle once again.
It is possible that the mechanic did not do this process properly and your vehicle is idling way too low.
Thursday, March 26th, 2009 AT 6:14 PM