my 2001 eclipse gt 3.0L when i first start it for the day, it doesnt idle smooth. jumps from 600 to 1500 rpms. only does this for maybe a min. it is stock other than a cold air intake.

145

Asked by Randy May 08, 2010 at 07:25 PM about the 2001 Mitsubishi Eclipse GT

Question type: Maintenance & Repair

4 Answers

45

Sounds like your ISC or idle speed control motor going bad

1 people found this helpful.
145

even though it only does it in the morning? after that it runs great?

55

The litttle black box where the intake tubing runs through, there is a little sensor there hats your problem, try cleaning it up otherwise you have a bad sensor

1 people found this helpful.

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