DME does get warm that's normal.
If you have not yet tested in your car with O2 unplugged that's the first thing you should try.
It's rare that a dirty TB or problematic ICV would cause hesitation under load. If the O2 unplugged doesn't change things then I suggest a Wideband O2 gauge so we know exactly what the mixture is set at. If your factory O2 sensor is healthy I have a poor mans procedure for checking mixture using the factory O2 sensor but you need to have a good quality Digital Volt meter that can measure 0-1 volt (0-1000 millivolts) very accurately, if you have that I help outline the procedure but one step at a time. Try putting back the black coil and unplugging the O2 sensor and report back.
Quote:
Originally Posted by Dubbin'
DME tested on another car today. Car ran fine and the hesitation issues were not duplicated. It hesitated very faintly at one point but it was not the same hesitation that I've been having in my 3.2 and it might also been his car - no cat, HF muffler and cone intake- getting used to my stock ECU.
We tried to provoque the hesitation: WOT, partial throttle, hight revs etc. Nothing happened. I think we can ruie out the DME.
I did notice that while removing the DME after a 15-20 minutes drive it was warm. I figure this is normal?
Tomorow I will unplug O2 sensor, reinstall the black coil, test the AFM try and test or clean the ICV - WOT switch and throttle body. I will also visually check some rubber while I'm there.
Thanks,
Mark
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