ok in my '85 6m, i am having bad hesitation at all times. the timing i am pretty dang sure that it is dead on. i have screwed with everything and the only thing that is left is the TPS. my question is can you convert the 4 wire TPS over to the 3 wire TPS without replacing the entire harness (i am quite sure my plug is the culprit). is there any way i can just use a 3 wire plug and not use one of the wires that are on the 4 wire harness????