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P0121 Diagnostic Trouble Code Discussion for May 2014

Throttle Position Sensor Does Not Agree With MAP


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Trouble Ticket Help Requests for DTC P0121
Help Request Posted
2003 Cadillac Escalade 6.0L Reduced engine power VIN: 1GYEK63N03
P0121: . OK so I have this escalade here. We have replaced the Tb Connector, TB,Tac Module, Pcm, App sensor, Tp sensor 1 wire from tb to tac module. The vehicle randomly goes into limp/reduced engine power mode followed by a one of the codes from above which usually al...
May 15, 2014