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P0121 Diagnostic Trouble Code Discussion for October 2013

Throttle Position Sensor Does Not Agree With MAP

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Trouble Ticket Help Requests for DTC P0121
Help Request Posted
2007 Chevrolet Corvette 6.0L High Idle VIN: 1G1YY25U97
P0121: TP Sensor 1 Performance. ... and a check engine light. The code was a P0121. Everything appeared to be working properly, but the TPS% was 14. Inspecting the found a lot of build up. So I cleaned it and now I cant seem to relearn the idle. If it is started cold, the idle will come down...
October 02, 2013