Obelisk415

I was adjusting my TPS and I supidly forgot to remove the test light when I took it for a test drive. When I came back to check the lights, none of them worked no matter what position I turned the adjustment. I was wondering if I messed something up by leaving the light in, or is it another problem. Oh yeah, I did test the lights and they still work.

HAILERS

Tell us a little more about these test lights. Are they LED'S or something else????

Its possible that a couple of transistors have been blown in the ECU. Do this. Get the car idling warm to hot. Now pull off the Blue connector off the Relief solenoid. Do you feel the solenoid engaging/disengaging as you connect/disconnect the blue connector???? If not, then it sounds like you've a blown transistor in the ECU. Actually probably two transistors.

All that green check connector is, is one socket has a constant 12v on it, one other socket is sensing the ground signal sent by the ECU to the Relief solenoid, and the third socket is the sensing the ground signal being sent by the ECU to the switching solenoid (grey plug). So if the lights are not lighting as the throttle is advanced/retracted, then the emissions of the car is corrupted.

Hey. Wait. Are you doing this with the car cold? Warm the car up and try again. Its possible the thermowax is holding the tps at a position where neither light comes on when cold. Sort of not likely, but a last gasp chance.