How to correctly adjust your throttle position sensor so that your car runs like it's supposed to and you are squeezing out all the power your engine has to give. Alterntively you can find the original DIY that I used to adjust mine: http://www.plymouthlaser.com/tps.htm
Symptoms suggesting yours needs adjusting:
1. Terrible throttle response
2. Lack of power on throttle
3. Terrible idle
4. If Auto - gear changes don't occur as they should + total lack of power + very sluggish
What you need:
Screwdriver
Multimeter that displays in Ohms and has pos/neg gauges
Step One:
Unplug the TPS to reveal 4 pins. Lightly unscrew each screw holding the TPS in so it becomes slightly loose but not so it flops around. Looking as if you had laid the TPS flat on its tummy, the pins are numbered from 1 to 4 from left to right as so:
Step Two:
Put the positive gauge on Pin 1 and negative gauge on Pin 4, adjust the TPS (move it around slowly) until your meter reads 5k Ohms.
Step Three:
Move the positive gauge to Pin 2, keep the negative on Pin 4. With the throttle closed, it should read 0.9k ohms. Adjust if necessary.
Step Four:
With the TPS in the same position as when it read 0.9k ohms closed, now open the throttle fully (may need a 2nd person to hold it open for you). You want the meter to read 5k ohms when the throttle is fully open. Adjust until necessary.
Step Five:
When it reads 5k ohms (or close enough) fully open, tighten the TPS screws back up a little. Double check that it still reads 0.9k ohms when closed. If so, fully tighten the TPS screws.
Step Six:
Turn the car on, listen to the sick idle. Take it for a spin around the block. Watch the panties drop.
Symptoms suggesting yours needs adjusting:
1. Terrible throttle response
2. Lack of power on throttle
3. Terrible idle
4. If Auto - gear changes don't occur as they should + total lack of power + very sluggish
What you need:
Screwdriver
Multimeter that displays in Ohms and has pos/neg gauges
Step One:
Unplug the TPS to reveal 4 pins. Lightly unscrew each screw holding the TPS in so it becomes slightly loose but not so it flops around. Looking as if you had laid the TPS flat on its tummy, the pins are numbered from 1 to 4 from left to right as so:
Step Two:
Put the positive gauge on Pin 1 and negative gauge on Pin 4, adjust the TPS (move it around slowly) until your meter reads 5k Ohms.
Step Three:
Move the positive gauge to Pin 2, keep the negative on Pin 4. With the throttle closed, it should read 0.9k ohms. Adjust if necessary.
Step Four:
With the TPS in the same position as when it read 0.9k ohms closed, now open the throttle fully (may need a 2nd person to hold it open for you). You want the meter to read 5k ohms when the throttle is fully open. Adjust until necessary.
Step Five:
When it reads 5k ohms (or close enough) fully open, tighten the TPS screws back up a little. Double check that it still reads 0.9k ohms when closed. If so, fully tighten the TPS screws.
Step Six:
Turn the car on, listen to the sick idle. Take it for a spin around the block. Watch the panties drop.