P0121 Diagnostic Trouble Code Discussion for June 2016
Throttle Position Sensor Does Not Agree With MAP
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| Help Request | Posted | |
| 2003 Chevrolet Impala LS 3.8L High Idle At Times P0121: TP Sensor Performance. Thanks For Any Help. This Car At Times Will All At Once Raise RPM'S To 3000. We Removed Throttle Body And Cleaned Carbon On Plates And Passages, Replaced TPS With Delco Part, Cleaned IAC. I Drove The Car Over 40 Miles With No Problem. Gave It To Owner And Next... |
June 20, 2016 |
