i did, i have tried new plugs, wires, tested the coil (good), distributor cap and rotor, and none of that change a thing. how do i know i have a bad tps, i have tried getting a resistance reading on it the way the fsm tells me and i get nothing. i cant get a resistance reading on the old one or the new one and im using the volt meter the same way i would to get a reading from all my injectors (which turned out good). i turned on the battery and on the female connector going to the tps i put the red prong in the middle terminal and grounded the black prong and i got 2.5 volts. i dont know if thats right i couldnt find anything on what the voltage should be going to the tps.