FixVault
Home
›
Hummer
›
2009
›
H3 Alpha
›
Repair and Diagnosis
›
Engine Performance
›
System
›
Engine Controls And Fuel - 5.3L - DTC P0016 To DTC P0308
›
DTC P0068 or P0121
›
DTC Descriptors
DTC Descriptors
DTC P0068
Throttle Body Airflow Performance
DTC P0121
Throttle Position (TP) Sensor 1 Performance