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03-05 SRT4 owners – Have Check Engine Codes P0121, P0122, P0123 ? Have weird idling/Throttle issues?

03-05 SRT4 owners – Have Check Engine Codes P0121, P0122, P0123 ? Have weird idling/Throttle issues?

If your 2004-2005 Neon SRT-4 has a weird idle that jumps up and down, or if youve ever noticed a weird surging issue when your holding the gas pedal steady while cruising, its very possible you need to do the TPS Rewire fix.

This is a common problem with 2003-2005 Neon SRT-4’s because of the way the wiring is run to the TPS sensor. Take a look at this photo we took of a 03-05 Neon SRT-4’s TPS wiring. The wiring runs from the bottom to the TPS sensor, and makes a sharp 90 turn back into the TPS sensor.

This puts strain on the wiring, and over time, the plastic outer sheathing looks fine, but the wiring inside breaks down and fails.

You can easily check to see if your wiring is failing, by jiggling the wiring going to the TPS sensor while your car is running. If your idle changes, or you can hear a change in tone of your motor, then more than likely its time to replace the wiring. Even if your car DOESNT have a change in tone or idle, we would still recommend changing the wiring.

Heres a photo of the Mopar TPS rewire kit. Its a very inexpensive and easy to install fix to the TPS sensor wiring issue and it includes much longer, reinforced wiring, and a new plastic connector.  With this kit, you remove the strain on the short, bent factory wiring that fails.

Heres a link for more information and how to purchase the TPS wiring fix kit:

Click here to go to our website for more details on the TPS wiring fix kit.

Written by Modern Performance

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