What should the TPS voltage be on an IAC?
Using the throttle lever, rotate the throttle to WOT (wide open throttle). The TPS voltage should be over 4.0 volts. Close the throttle again, and then slowly open it to WOT, observing the voltage reading.
What should the voltage be on a TPS switch?
The TPS voltage should be over 4.0 volts. Close the throttle again, and then slowly open it to WOT, observing the voltage reading. It should increase progressively and in a linear fashion. If it sticks or jumps or falls off at all while doing this check, that could mean a bad TPS switch and could be a cause of stumbling and driveability problems.
How to test the GM 3.8L Throttle Position Sensor ( TPS )?
TPS TEST 1: Testing The TPS Signal. TPS TEST 2: Testing The 5 Volt Reference Signal. TPS TEST 3: Ground Circuit Test. TPS Code Will Not Go Away. How To Calibrate the 1988-1992 TPS. You can find this tutorial in Spanish here: Cómo Probar El Sensor TPS (GM 3.8L) (at: autotecnico-online.com ).
What to do if your TPS is out of Spec?
If out of spec, loosen the two screws holding the TPS to the throttle body, and slightly rotate the TPS up or down, reading the voltage until it comes into specification. Tighten screws. Using the throttle lever, rotate the throttle to WOT (wide open throttle).
Using the throttle lever, rotate the throttle to WOT (wide open throttle). The TPS voltage should be over 4.0 volts. Close the throttle again, and then slowly open it to WOT, observing the voltage reading.
The TPS voltage should be over 4.0 volts. Close the throttle again, and then slowly open it to WOT, observing the voltage reading. It should increase progressively and in a linear fashion. If it sticks or jumps or falls off at all while doing this check, that could mean a bad TPS switch and could be a cause of stumbling and driveability problems.
TPS TEST 1: Testing The TPS Signal. TPS TEST 2: Testing The 5 Volt Reference Signal. TPS TEST 3: Ground Circuit Test. TPS Code Will Not Go Away. How To Calibrate the 1988-1992 TPS. You can find this tutorial in Spanish here: Cómo Probar El Sensor TPS (GM 3.8L) (at: autotecnico-online.com ).
What does TPS stand for in GM 3.8L?
TPS Diagnostic Trouble Codes (DTCs) stored in the vehicle’s computer’s memory. Really bad gas mileage. You know that it’s not the price of Gasoline that has you thinking that your 3.8L V6 equipped GM vehicle is costing you more at the pump. Transmission does not shift out of second gear.