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Code P0122?

Tiny
SCOTTIE GEARHART
  • MEMBER
  • 2000 FORD MUSTANG
  • 3.8L
  • 6 CYL
  • 2WD
  • MANUAL
  • 178,000 MILES
I keep getting a P0122. I have changed the TPS several times. I have a solid 5v on the harness but can't seem to get a variation of voltage when I turn the throttle. Needing help figuring out what is going on.
Friday, September 2nd, 2022 AT 1:15 PM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 43,254 POSTS
Code P0122 is Throttle Pedal Position Sensor/Switch (TPS) A Circuit Low Input. so, we need to check the connection between the TPS and the PCM. here is a guide to help and the wiring diagrams so you can do the test if the wiring is okay you will need to replace the PCM:

https://www.2carpros.com/articles/how-to-check-wiring

Here is how to replace the PCM as well in case you need it. Check out the diagrams (below). Please let us know what happens.

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Saturday, September 3rd, 2022 AT 7:41 AM

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