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P0120 Diagnostic Trouble Code Discussion for October 2010

Throttle Position Sensor Circuit Malfunction

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Trouble Ticket Help Requests for DTC P0120
Help Request Posted
1999 Lexus ES300 3.0L MIL Lamp on VIN: JT8BF28G6X
P0120: TP Sensor/Switch 'A' Circuit Malfunction. ... TO CYLINDERS P0125 ERROR CODE P0120 TPS CODE. We replaced the coils (all six) and plugs. After the road test the Car recoded with a P0125. This is NOT a coola...
October 07, 2010