Bad hesitation after 4k
 

WHen my car heats up to normal operating temp. it bucks really bad at 4k and then about every 1k rpms it starts to buck all the way up to 8k.Heres the weird thing when im runnin at about 150 degrees it wont do it at all????only when its heated up all the way.I trien replacing both coils and adjustind my tps but no luck.Im gona try replacing that coolant sensor on the water pump houseing and see what that does. Any help on this would be great.

Thanks
jake

anyone????