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What are obd codes P2122,P2127, and P2128 on 2006 2.8 Colorado?

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SOURCE: Check engine light is on, reduced power displayed on dash, code P2122 and code P2127 comes up

its a problem with the pedal and throttle position corilation

Posted on Jul 09, 2012

Testimonial: "Thanks, I replaced the throttle positioning sensor (had to buy a whole new gas pedal as the sensor is in the pedal. Pretty easy fix, two 10 mm bolts and used a small screw driver to release the wiring harness. Replaced in about 10 mins. "

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2 Answers

Car not taking the gas,code p2122 and p2127


check your aps sensor,accelarator position sensor if its bad and make sure all connector and wire from this sensor to ecu is good,.

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Code p2122 & p2127 any solution?


The pedal position sensor is throwing a code. could be ECM may need to updated

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I have a 04 dodge Durango hemi 5.7. Error code p0648- p2122- p2127- p2138. Car is idling at 10mpg. The dealer replaced the throttle body and recommended I pay them $900 bucks to replace the PCM, I replaced...


-Need to determine what these codes are before replacing parts.
-After replace, The CODE NEED to be Erase.
-Find these code in its repair manual. So you can pin point what is the problem.

mai Lor

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Accelerator pedal position sensor


have the throtthle body cleaned and then decide if you need it replaced may be dirty

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Reduced engine power, service traction control, service stabilitrak


First of all a scan tool is need for this not a code reader, you need to view scan data after you find what code is stored in the PCM. It could have a problem with the powertrain control module, wiring, or the Accelerator Pedal Position (APP) Sensors. Here are a few codes that could set .
DTC P2120: Accelerator Pedal Position (APP) Sensor 1 Circuit

DTC P2122: Accelerator Pedal Position (APP) Sensor 1 Circuit Low Voltage

DTC P2123: Accelerator Pedal Position (APP) Sensor 1 Circuit High Voltage

DTC P2125: Accelerator Pedal Position (APP) Sensor 2 Circuit

DTC P2127: Accelerator Pedal Position (APP) Sensor 2 Circuit Low Voltage

DTC P2128: Accelerator Pedal Position (APP) Sensor 2 Circuit High Voltage

DTC P2138: Accelerator Pedal Position (APP) Sensor 1-2 Correlation

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