Yes there is, and here is how you can check it! Take off the IAC and examine it for wear, also check for where it goes into the throttle body, it should be smooth and have no marks whatsoever, if there is some scratches on the IAC replace it, if all looks good reinstall and be sure to put NEW GASKETS on or it probably will suck air.
Now take out a volt meter and measure the counts with the engine off at the IAC and record and then start the engine and check the counts. Post back the results.
Saturday, December 1st, 2007 AT 7:56 AM