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P0120 Diagnostic Trouble Code Discussion for September 2010

Throttle Position Sensor Circuit Malfunction


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Trouble Ticket Help Requests for DTC P0120
Help Request Posted
2006 Chevrolet Silverado 2500 HD LS 6.0L Reduced power VIN: 1GCHC29U26
P0120: TP Sensor 1 Performance. ... codes p2135 and p0120 for the last few months intermittenly. Then the reduced power message would be displayed. We installed a new Delco throttle body, and Delco connector then reflashed the pcm. Still intermittenly but not new as frequently. Any help with...
September 27, 2010
2006 Chevrolet Silverado 2500 HD LS 6.0L Reduced power VIN: 1GCHC29U26
P0120: TP Sensor 1 Performance. ... codes p2135 and p0120 for the last few months intermittenly. Then the reduced power message would be displayed. We installed a new Delco throttle body, and Delco connector then reflashed the pcm. Still intermittenly but not new as frequently. Any help with...
September 27, 2010