Pontiac specific DTC OBD2 code: P1228 Injector Circuit Cylinder 3 Intermittent
Pontiac specific DTC OBD2 code: P1231 Injector Circuit Cylinder 4 Intermittent
Pontiac specific DTC OBD2 code: P1234 Injector Circuit Cylinder 5 Intermittent
Pontiac specific DTC OBD2 code: P1237 Injector Circuit Cylinder 6 Intermittent
Pontiac specific DTC OBD2 code: P1240 Injector Circuit Cyllinder 7 Intermittent
Pontiac specific DTC OBD2 code: P1243 Injector Circuit Cylinder 8 Intermittent
Pontiac specific DTC OBD2 code: P1245 Intake Plenum Switchover Valve
Pontiac specific DTC OBD2 code: P1250 Early Fuel Evaporation Heater Circuit
Pontiac specific DTC OBD2 code: P1257 Supercharger System Overboost
Pontiac specific DTC OBD2 code: P1258 Engine Coolant Overtemperature – Protection Mode Active