Hesitation from 2500 to 3200 light throttle tune issue?
10-30-2016, 10:44 PM
#1
4th Gear Member
Thread Starter
Join Date: Apr 2009
Location: Cleveland, TN
Posts: 1,250
Hesitation from 2500 to 3200 light throttle tune issue?
So I have a 2010 GT with 85k on the clock. Only engine mods are FRPP exhaust and previous owner stated it was tuned for 93 octane by the guy who owned it before him. No tuner was included with the car and I have no idea who tuned or with what. If I reset the ecu and do full throttle relearn, I even slowly press throttle to give it a chance to relearn that, everything runs perfect for a couple of weeks.
After a couple of weeks the idle starts to have a slight up and down to it but nothing dramatic just no longer holds steady for long. When driving in the 2500- about 3200 range on highways or even cruising light to medium throttle it has a hesitation almost like a stumble. Getting on it hard you can still kind of feel it till you really start to ring it out. As soon as I reset ecu it is fine. Is this an adaptive learning issue related to the tune or what? I get zero codes and I have cleaned the MAF.
After a couple of weeks the idle starts to have a slight up and down to it but nothing dramatic just no longer holds steady for long. When driving in the 2500- about 3200 range on highways or even cruising light to medium throttle it has a hesitation almost like a stumble. Getting on it hard you can still kind of feel it till you really start to ring it out. As soon as I reset ecu it is fine. Is this an adaptive learning issue related to the tune or what? I get zero codes and I have cleaned the MAF.
