After you reset the ECU does it take before its back to normal, each time i have done it. It seems to take awhile to go back to normal, I never paid attention to how many miles or time it took though. Also after you reset the ecu does it idle a liitle low, I just removed and cleaned the egr, and replced both o2 sensors, after my header install went to heck...! But its working again so thats cool.
