Quote Originally Posted by green91
I cant think of a single way that a tune could cause your engine to overheat as long as your cooling system is working properly. A lean mixture does cause hotter ignition temps, but should in NO way cause your car to overheat.

Hmmm... well like I said it only over heats when it feels like it wont go anywhere.. like it really struggles and strains to accelerate... this has only happened a couple of times though. But I dont know what else beside the tune would cause it to act like that. Its just so random in the way it runs. I just took it out for a drive and everything ran beautifully