Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Controls And Fuel - 6.2L - DTC P0010 To DTC P0232 >> DTC P0133, P0134, P0140, P1133, P2270, P2271, P2A00, or P2A01 >> Diagnostic Instructions