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P2121 Diagnostic Trouble Code Discussion for September 2012

Accelerator Pedal Position Sensor 1 Performance


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Trouble Ticket Help Requests for DTC P2121
Help Request Posted
2008 Dodge Ram 2500 Truck SLT 6.7L Surge, MIL Lamp on VIN: 3D7KS28A08
P2121: apps sensor 1 performance. This customer says the truck will intermittently go into limp mode with loss of power and poor idle. Replaced APPS sensor[pedal assy] and re-scanned. Went for 10 mile test drive and all seemed good until 4 miles from shop. The CEL came on and throttle light st...
September 27, 2012
2008 Dodge Ram 2500 Truck SLT 6.7L Surge, MIL Lamp on VIN: 3D7KS28A08
P2121: apps sensor 1 performance. This customer says the truck will intermittently go into limp mode with loss of power and poor idle. Replaced APPS sensor[pedal assy] and re-scanned. Went for 10 mile test drive and all seemed good until 4 miles from shop. The CEL came on and throttle light st...
September 27, 2012