On longer drives on the interstate, usually more than an hour, the traction sensor shows the Trac Off light. This usually only happens when its hot outside and when I floor it. The problem is when the light is on and I've been driving for a while, the car bogs down and the car doesn't respond to the throttle. The engine will rev but very little acceleration. It slowly builds and speeds up, but not like it should. Any suggestions as to what it might be? I would just disable the traction sensor, but I don't want to lose ABS too.