Just curious, have you tried using the comm gear PID while towing? One common misconception is the difference between 4th gear (overdrive) and 4th gear with the torque converter locked (locked overdrive) and then the locked/unlocked 3rd gear. Sometimes you think you are dropping out of overdrive and it is just the torque converter unlocking. Usually there is about a 400 rpm difference between OD and locked OD but could be more if you are towing. If your torque converter is locking just a bit too soon you can move that locking point back in your custom options menu.
|