well doesnt the fast idle control valve only control the idle being bumped up when you use things like lights etc? How about the throttle position sensor? I knew someone who was having probs with hesitation and it turned out to be that but I never got around to finding out why etc etc.... also do you think it is possible an injector can be fouled in any way? Cause when you are at 3-10% throttle and if its fouled you wont get the pressure that you should, but when you punch it then even if its fouled it will get decent pressure....