× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network

P2120 Diagnostic Trouble Code Discussion for August 2009

Accelerator Pedal Position Sensor 1 Circuit Malfunction

Note: This is a professional automotive technician's resource.
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.

Trouble Ticket Help Requests for DTC P2120
Help Request Posted
2004 Chevrolet Silverado 2500 HD 6.0L MIL Lamp on VIN: 1GCHC29U84
P2120: Accelerator Pedal Position Sensor 1 Circuit Malfunction. ... driving the truck for a while, the "Reduced Engine Power" and "Check Engine" lights come on, and that the vehicle won't accelerate and has no power. Previously when this problem occured, the APP was replaced and that took care of the proble...
August 17, 2009