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P0120 Diagnostic Trouble Code Discussion for May 2015

Throttle Position Sensor Circuit Malfunction

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Trouble Ticket Help Requests for DTC P0120
Help Request Posted
2003 Chevrolet Silverado 1500 5.3L MIL Lamp on VIN: 2GCEK19TX3
P0120: TP Sensor 1 Performance. I Have intermittent p2135 and p0120. I have checked wiring going from tac module to throttle body with test light and dvom no high resistance. It is never current when I have vehicle. Tp sensor 1 and 2 always agree. I have replaced tac module, throttle body an...
May 11, 2015
2005 Chevrolet W3500 Tiltmaster W3S042 6.0L MIL Lamp on VIN: 4KBB4B1U55
P0120: tp sensor 1 ckt. I have this truck in that's giving me fits. We usually don't work on these but it's a friend of the bosses. What I'm looking for is the TAC CONTROL MODULE LOCATION, I got a special request from alldata that said it was on the firewall, but this is a tilt maste...
May 20, 2015
1996 Mazda 626 DX 2.0L Poor Idle Quality, Stall, MIL Lamp on VIN: 1YVGE22C1T
P0120: TP Sensor Circuit Malfunction. Mazda 626 starts up alright. After 2 minutes, the idle starts getting irregular and then tries to stall. Feathering with the throttle keeps the engine runnning. I replaced the fuel filter and checked fuel quality. It was clear and no water detected after 4 att...
May 25, 2015