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P0120 Diagnostic Trouble Code Discussion for August 2010

Throttle Position Sensor Circuit Malfunction

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Trouble Ticket Help Requests for DTC P0120
Help Request Posted
2004 Chevrolet Tahoe LS 4.8L Poor Idle Quality, Hesitation, MIL Lamp on VIN: 1GNEK13V54
P0120: TP Sensor 1 Performance. ... engine power" message, codes P0120, P2101, P2135 stored. First shop replaced the throttle body assembly and the pedal assembly. Problem went away for a few days, then recurred. Second shop r...
August 05, 2010
1998 Toyota 4Runner SR5 3.4L Poor Idle Quality, MIL Lamp on VIN: JT3HN86R6X
P0120: TP Sensor or Switch 'A' Circuit Malfunction. Car came to us from another shop. Cel inop but had 4 codes, po100,110,171,120. Found air cleaner plugged and maf very dirty. Replace air filter and cleaned maf. Found tps reading 0% at idle. Replaced tps. Runs ok now but still has high idle cold or hot and som...
August 13, 2010