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I have a 07 gmc sierra on machine it said tps/ pedal position sensor A. Any info

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Good luck with this one you will need to have the tps and the pedal sensor tested as these and the chevy trucks have so many problems with the throtle bodys. ive had a few of these and 90% of the time the throtlebody had to be replaced as you cant replace the tps or other components in the throtlebody.

Posted on Jul 15, 2010

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This is indicating that the TPS Sensor is either out of calibration or defective however it sends dc low voltage to the computer like at idle it is reading its lowest value and when you tag the pedal(WOT wide open throttle) pedal to the will read its highest just to let the computer know if you are idling, driving slow or really stepping on it, these various TPS readings gives the computer the proper information to allow the different sensors such as the O2 sensor etc. and the injectors how to behalve through electronic voltage signals all the while keeping your vehicles engine running at its top performance for efficientcy and for clean exhaust emmisions.
The shop scanners are the best to use when replacing or resetting the TPS as with the proper testing for any other electronic sensors on your vehicle, these scanners are a bit too expensive for any one to be owning working on their vehicles, it just doesn't seem to be cost effective.
I think you would be better served letting a certified tech take care of this matter for you.
Hopes this helps

Posted on Jul 15, 2010


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Smog Filed due to error P0121 Throttle/Pedal Position Sensor/Switch A Circuit range/performance.

Replacing TPS will reset the light but will stay in memory until the computer is reset. For help to change throttle body sensor check out you tube :How To Install Replace Throttle Position Sensor Chevy Silverado GMC Sierra.

Mar 23, 2015 | 2007 Chevrolet Silverado 1500 2WD

1 Answer

Whats a tps

TPS is abbreviation for Throttle Position Sensor, found attached to the throttle body itself, with wires connected to it.

This link can help you.
Throttle position sensor

Jun 26, 2014 | 2000 GMC New Sierra 1500

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P2135 07 Suzuki swift

fly by wire.
Throttle body failure, clean it and pray.
bad TPS wires at same place.
- Faulty electric throttle control actuator (TP sensor 1 and 2)
- Throttle Position Sensor harness is open or shorted
- Throttle Position Sensor circuit poor connection
- Faulty accelerator pedal position sensor

Oct 15, 2013 | Suzuki Cars & Trucks

1 Answer

What is tps sensor

TPS is the Throttle Position Sensor, Usually located on the side of your throttle body (carburator) It works with your idle air control valve to regulate the air flow into the intake at idle

Feb 10, 2012 | 1992 GMC Sierra K1500

1 Answer

Code 22 on 95 gmc sierra what does that mean also t will start up but wants to die we replaced idle air control valve and also the throttle position sensor did not fix it i check vaccum lines all good it...

Trouble Code 22 indicates that the Throttle Position Sensor (TPS) is reading abnormally low. TPS volts should be close to 0.42 V at closed throttle and rise smoothly in about 0.02 volt increments to a maximum reading of about 4.85 volts at WOT.
Typical causes for this code include:

1) Maladjusted TPS
2) Defective TPS
3) No +5 volt reference to TPS
4) TPS-return to ECM is shorted to ground or to sensor ground
5) Defective ECM

Good luck, i hope this helps.

Jul 01, 2011 | 1995 GMC Sierra C1500

2 Answers

Can you tell me the location for the pedal position sensor on a 99 gmc suburban? Thanks.

If you are prefering to the throttle its on the side of the throttle body (TPS ) Throttle Position Sensor.There is no pedal position sensor.

May 02, 2011 | 1999 GMC Suburban

2 Answers

Pedal position malfunction

You can change the tps alone. You do not have to change the entire throttle body. It shouldn't be riveted in place, it should have screws or bolts on one side or the other. If it's riveted in place, use a dremmel and grind the rivets off. You can replace rivets with screws on the new unit.

May 24, 2009 | 2003 GMC Sierra

1 Answer


Your truck has an electronically controlled throttle system. There are (2) TPS sensors located on the accelerator pedal.
Both of the sensors must agree, by way of a voltage signal, to the current position of the throttle. If (1) of the sensors sends a different voltage signal back to the PCM than the other, the PCM will set this fault.
The reason for the (2) sensors is redundancy. In the event a sensor fails, the other will allow the engine to run and not leave you stranded.
A scan tool will be able to determine which sensor is out of sync and then can be replaced.
I hope this satisfies your question. Let me know.

May 12, 2009 | 2003 GMC Sierra

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