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P1122 Diagnostic Trouble Code Discussion for January 2013

Electronic Throttle Control Actuator Malfunction


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Trouble Ticket Help Requests for DTC P1122
Help Request Posted
2002 GMC Sierra 2500 SL 6.0L Hesitation, Misfire, MIL Lamp on VIN: 1GTGK29U22
P1122: TP Sensor Circuit Intermittent Low Voltage. when it acts up ,running rough ,misfiring, there is about 9 volts @ the 5volt reference wire from pcm to tps.Note (this is a throttle cable truck not fly by wire).When tps is disconnected it straigtens out and doesnt act up.I've traced the wire back to pcm,and...
January 18, 2013
2002 GMC Sierra 2500 SL 6.0L Hesitation, Misfire, MIL Lamp on VIN: 1GTGK29U22
P1122: TP Sensor Circuit Intermittent Low Voltage. when it acts up ,running rough ,misfiring, there is about 9 volts @ the 5volt reference wire from pcm to tps.Note (this is a throttle cable truck not fly by wire).When tps is disconnected it straigtens out and doesnt act up.I've traced the wire back to pcm,and...
January 18, 2013