Jump to content


How to set your TPS


No replies to this topic

#1 Gixxer750

    2KOOL Team Member aka The 2Kool Eye Candy

  • Members
  • 654 posts

Posted 27 November 2004 - 01:07 PM

Adjusting your throttle Position Sensor (TPS) is a very simple thing to do. The reasons for setting the TPS can be numerous, but include, better idle, better throttle response, faster acceleration.

The TPS is located on top of the throttle body. You will need a Phillips head screwdriver to loosen the 2 screws that hold it down.



To check the TPS voltage you will need a Digital Multi Meter. Make sure the ignition is turned to the on position, but do not start the car.

The TPS has 3 wires going to it.

A black wire (ground)
Orange wire (5 volt reference)
Green wire (EEC feed wire).

You will want to probe the green wire, and the black wire (you can also ground out the meter on another ground as well). The TPS setting should be between .95-1.00v. If your reading is not in this range you can try adjusting the TPS by loosening the 2 screws on the top of the sensor, and rotate the TPS like you would a volume knob on a stereo. If you still can not get the reading into the range you need, remove the sensor from the car, and take a small drill bit, and drill the holes out to allow for more adjustment room. By using a drill bit that is smaller than the hole, you can elongate the holes and allow for a better range of adjustment.

Reattach the TPS to the car, and adjust until you get into the desired .95-1.00V range. Tighten the sensor back down, and that is it, you’re done.
1987 GT T-Top

2Kool Moderator ( Proof that a nice set of knockers can get you somewhere in this world)