Home mechanics and small shops accessibility to OBD-II signals to use them for their own testing and repairs. Recent introductions of less costly scanning devices have allowed Scanning OBD-II signals can also provide important information when purchasing a used vehicle. System can sometimes pinpoint the specific component that has malfunctioned, saving substantial service time and cost. O2's may be dead or you are using extenders (known issues) or the tuner tuned them out but the ECM is still 'looking' for input from them. GM: P1153 HO2S Insufficient Switching Bank 2 Sensor 1. These engine codes divided 4 parts : Diagnostic Body (B) Trouble Code, Diagnostic Network (U) Trouble Code, Diagnostic Chassis (C) Trouble Code and Diagnostic Powertrain (P) Trouble Code.įault codes usually appear after the "Check Engine" light has come on. GM: P1133 HO2S/O2S Insufficient Switching Sensor 1 Or Bank 1 Sensor 1. OBD is an electronic system designed to control engine functionsĪnd diagnose engine problems or component failures, as well as minimize emissions. OBD systems are found in most vehicles in use today. Welcome to we provide engine codes with OBD/OBD2 systems.
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