× 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

P2121 Diagnostic Trouble Code Discussion for July 2007

Accelerator Pedal Position Sensor 1 Performance


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 P2121
Help Request Posted
2003 Dodge Ram 2500 5.9L no accel response VIN: 3D7KU28623
P2121: app volts dont agree with idle validation signal. ... and codes p2121 and p2122. customer says at times, he can be at cruise speed and the engine will just go to idle and the accelerator pedal will not change engine speed. over the weekend, he tried to pull away from a red light but the truck would only idle,...
July 02, 2007