how can i tell if i have a bad TPS. what kinds of symtoms might one have if it did go bad?

 

check engine light is a start

 

right........... and besides that?

 

will a bad TPS cause a slight hesistation/bogging at WOT?

 

why dont you just check it 4.5 at wot and .45 at idle

 

If you can get an analogue voltmeter (has an analogue readout instead of a digital one) you can test the TPS. Hook up the gauge to the correct wires and take the tps from idle through wide open throttle. If the analogue needle jumps itrratically at any moment you probably have a bad TPS.

If you have a bad spot in the TPS the car wil stumble and hesitate at a certain throttle position almost every time.