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I want to adjust TPS position on my engine. how to do that? thanks

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MattGSR
Coltsfan
Moulin13
Wrx110487

Find the TPS, follow the wiring that goes to a connector on the firewall. Once you've located it, use a Voltmeter/Multimeter by sticking the leads into the two wires coming out of that connector on the firewall, set it to 5 or 10 volts and turn it on. Got that part done.

Now turn the ignition key to the ON position without starting the car, then go back to your Voltmeter. With the key on it is sending 5 volts to the TPS. If you have the two leads on the correct wires (positive, negative) then you should already be seeing a readout from the TPS. I believe if the Throttle body is closed, you will get a base read of .05 volts. If it's two high, simply loosen the two screws holding the TPS and rotate it, watching the voltage change until it is at factory spec. Done....then remember to tighten the TPS back down.

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Good stuff - trucks bring it!

will this adjust for the tps work for a 12v?

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91 plym colt 4g 4g15 12v/ 4g37 upgrades 5spd flat black

It will work on all csms

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Good stuff - trucks bring it!

nothing happen when i rotate the TPS. still i read 5V in all position.

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MattGSR
Coltsfan
Moulin13
Wrx110487

If you are absolutely sure that you tested the TPS, and all it reads is 5 volts no matter, then your ecu thinks you are at full throttle 100% of the time....you will have shitty gas mileage and overall running performance. You can also check to see if it changes resistance as you rotate the TPS, but it sounds like something is really wrong with it. Can you get another one to test out?

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Good stuff - trucks bring it!

huh so maybe that's the reason why i only get 8 MPG

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MattGSR
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Wrx110487