about a month ago I had the opti spark and rear end rebuilt. I have now drove it over 1000 miles. Now when I drive, and idle, my rpms will go from idle (500) all the way to 1300 or so. It will just go back and forth like a EGR valve is clogged. But it never tries to die. It only goes up and never down. It does it while im driving to. Any ideas on what it could be?
Mar 26, 2012 at 12:07 PM