Try to adjust it, only if the sensor has slots on the mounting screws; if it does not have slots, it is not adjustable.
Remove air cleaner. Disconnect the TPS harness from the TPS
Using suitable jumper wires, connect a digital voltmeter from the TPS connector center terminal B to the outside terminal A
With the ignition ON and the engine stopped, The TPS voltage should be less than 1.25 volts.
If the reading on the TPS is not within the specified range, rotate the TPS until 0.42-0.54 volts are obtained. If this specified voltage cannot be obtained, replace the TPS.
If TPS is good, next step will be the fuel pump.
Check the tps first and tell me what happens so we can continue.
fuel pump is expensive and we want to make sure we doing the right thing.
Here are the 2 different sensors, find which one look similar to yours
Throttle Position Sensor (TPS) on a Model 300 TBI assembly
Throttle Position Sensor (TPS) on a Model 700 TBI assembly
Wednesday, May 5th, 2010 AT 12:59 AM