I have a 2000 Mazda 626 with a little over 100,000 miles. when you start it, it revs really high, then after about 5 seconds, slows down and goes up and down a few times. when you drive it it runs great. No check engine light etc. any suggestions? thanks
Clean the throttle body and IAC and see if that helps.
Search Mazda 626 Questions
Mazda 626 Experts