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P0120 Diagnostic Trouble Code Discussion for March 2010

Throttle Position Sensor Circuit Malfunction

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Trouble Ticket Help Requests for DTC P0120
Help Request Posted
2003 Chevrolet Silverado 2500 HD LS 6.0L Hesitation, MIL Lamp on VIN: 1GCHK24U33
P0120: TP Sensor 1 Performance. ... hd with 6.0-throws codes p0120-tps circuit-p2135 corralation problem-customer states low power and ckeck engine light-each time this has taken place,by the time he can get the truck to the shop-we find that the check engine light is on with these two codes...
March 11, 2010