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P2121 Diagnostic Trouble Code Discussion for March 2012

Accelerator Pedal Position Sensor 1 Performance

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Trouble Ticket Help Requests for DTC P2121
Help Request Posted
2002 Volvo S60 T5 2.3L no throttle response VIN: YV1RS58D92
P2121: accelerator pedal position faulty digital signal. Originally, it had fault P2126 too (accelerator position sensor, analog signal faulty). Has a Bosch throttle module that doesn't need software if replaced. Throttle position, KOEO, shows correct values but with engine running in Drive won't go above 2% with h...
March 09, 2012