^^^ Not always a good thing to do... especially in a case where the engine is having det issues from a bad tune or otherwise prior to the reset. Besides, if all is well IAM will advance within a few miles anyway. There are other things that take time to learn proper curves in the ECU tables besides the IAM in order to get perfect power and drivability from the tune on the ECU. An advanced IAM is about 25% of the entire equation.