GMC specific DTC OBD2 code: P1132 H02S Circuit Low Variance Bank 2 Sensor 1
GMC specific DTC OBD2 code: P1156 HO2S Rich Average Bank 2 Sensor 1
GMC specific DTC OBD2 code: P1191 Intake Air Duct Air Leak
GMC specific DTC OBD2 code: P1111 Intake Air Temperature (IAT) Sensor Circuit Intermittent High Voltage
GMC specific DTC OBD2 code: P1133 HO2S Insufficient Switching
GMC specific DTC OBD2 code: P1157 HO2S Bank 2 Sensor 2 Lean System Or Low Voltage
GMC specific DTC OBD2 code: P1112 Intake Air Temperature (IAT) Sensor Circuit Intermittent Low Voltage
GMC specific DTC OBD2 code: P1134 HO2S Transition Time Ratio
GMC specific DTC OBD2 code: P1158 HO2S Bank 2 Sensor 2 Rich Or High Voltage
GMC specific DTC OBD2 code: P1113 Intake Resonance Switchover Valve Circuit