(possible sticky?) obd0 code check list
everyone askes me what this code is or what that code is, so here goes:
0: ECU check the ECU electrical connector. if no loose connectors are found, have the ECU diagnosed by a dealer service department or other qualified repair shop. 1: Oxygen Sensor "A" (Primary) defective circuit or unplugged / defective sensor 2: Oxygen Sensor "B" defective circuit or unplugged / defective sensor 3: MAP Sensor (Manifold Absolute Pressure) defective circuit or unplugged / defective sensor 4: CKP Sensor (Crankshaft Position Sensor) defective circuit or unplugged / defective sensor 5: MAP Sensor (Manifold Absolute Pressure) mechanical problem / disconnected piping 6: ECT Sensor (Engine Coolant Temperature) defective circuit or unplugged / defective sensor 7: TPS (Throttle Position Sensor) defective circuit or unplugged / defective sensor 8: TDC Sensor (Top Dead Center) defective circuit or unplugged / defective sensor 9: CYP Sensor (Cylinder #1 Position) defective circuit or unplugged / defective sensor 10: IAT Sensor (Intake Air Temperature) defective circuit or unplugged / defective sensor 12: EGR Lift Sensor (Exhaust Gas Recirculation) check the hoses, the EGR valve lift sensor and the System EGR valve. 13: BARO Sensor (Atmospheric Pressure) defective circuit or unplugged / defective sensor 14: IAC Valve (Idle Air Control) defective circuit or unplugged / defective sensor 15: Ignition Output Signal missing or defective ignition output signal 16: Fuel Injector System defective circuit or unplugged / defective fuel injector 17: VSS (Vehicle Speed Sensor) defective circuit or unplugged / defective sensor 19: Automatic Transmission Lock Up Control Solenoid Valve defective circuit or unplugged / defective solenoid valve 20: Electrical Load Detector defective circuit or unplugged / defective sensor 21: VTEC Solenoid Valve defective circuit or unplugged / defective solenoid valve 22: VTEC Oil Pressure Switch defective circuit or unplugged / defective oil pressure switch 23: KS (Knock Sensor) defective circuit or unplugged / defective sensor 30: Automatic Transmission Signal: "A" / SEAF / SEFA / TMA or TMB defective circuit or unplugged / defective sensor 31: Automatic Transmission Signal "B" defective circuit or unplugged / defective sensor 41: Primary Oxygen Sensor - Heater check the heater for the proper voltage signal. 43: Fuel Supply System check the fuel pressure, fuel pressure regulator. check the oxygen sensor. also, check for vacuum leaks. 45: System Too Lean or Too Rich malfunction in the fuel monitoring systems 48: LAF Sensor (Lean Air Fuel) defective circuit or unplugged / defective sensor 54: CKF Sensor (Crankshaft Speed Fluctuation) defective circuit or unplugged / defective sensor 58: TDC Sensor 2 (Top Dead Center) defective circuit or unplugged / defective sensor 61: Oxygen Sensor, Heated - Sensor 1 (Primary) high voltage, low voltage, or slow response 63: Oxygen Sensor, Heated - Sensor 2 (Secondary) high voltage, low voltage, or slow response 65: Oxygen Sensor Heater (Secondary) malfunctioning or defective oxygen sensor heater 67: Catalyst system Efficiency Below Threshold malfunctioning or defective catalyst system 70: Automatic Transmission malfunction with the automatic transmission controls 71: Cylinder 1 Misfire or a Random Misfire a condition is present that is creating a cylinder misfire 72: Cylinder 2 Misfire or a Random Misfire a condition is present that is creating a cylinder misfire 73: Cylinder 3 Misfire or a Random Misfire a condition is present that is creating a cylinder misfire 74: Cylinder 4 Misfire or a Random Misfire a condition is present that is creating a cylinder misfire 75: Cylinder 5 Misfire or a Random Misfire a condition is present that is creating a cylinder misfire 76: Cylinder 6 Misfire or a Random Misfire a condition is present that is creating a cylinder misfire 80: Exhaust Gas Recirculation insufficient flow detected 86: ECT Sensor (Engine Coolant Temperature) circuit range / performance problem 90: Evaporative Emission Control System leak detected in the fuel tank area 91: Fuel Tank Pressure Sensor low input 92: Evaporative Emission Control System insufficient purge flow |
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