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Home › Hummer › 2009 › H2 4D Utility Pickup › Repair and Diagnosis › Engine Performance › System › Engine Controls And Fuel - 6.2L - DTC P0010 To DTC P0232 › DTC P0068 or P0121 › DTC Descriptors

DTC Descriptors

DTC P0068: Throttle Body Airflow Performance
DTC P0121: Throttle Position (TP) Sensor 1 Performance