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PistonCMS Automotive Knowledge Base

Automotive Diagnostic Code Lookup

Find OBD-II codes fast, or start with the symptom and work toward the most likely diagnostic path.

Try: P0300 P0420 rough idle oxygen sensor

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P0010Intake Camshaft Position Actuator Circuit (Bank 1)P0011Intake Camshaft Position Timing Over-Advanced (Bank 1)P0012Intake Camshaft Position Timing Over-Retarded (Bank 1)P0013Exhaust Camshaft Position Actuator Circuit (Bank 1)P0014Exhaust Camshaft Position Timing Over-Advanced (Bank 1)P0016Crankshaft/Camshaft Position Correlation (Bank 1 Sensor A)P0017Crankshaft/Camshaft Position Correlation (Bank 1 Sensor B)P0087Fuel Rail/System Pressure Too Low P0088Fuel Rail/System Pressure Too High P0100Mass Air Flow Circuit Malfunction P0101Mass Air Flow Circuit Range/Performance P0102Mass Air Flow Circuit Low Input P0103Mass Air Flow Circuit High Input P0104Mass Air Flow Circuit Intermittent P0106Manifold Absolute Pressure Circuit Range/Performance P0107Manifold Absolute Pressure Circuit Low Input P0108Manifold Absolute Pressure Circuit High Input P0110Intake Air Temperature Sensor Circuit Malfunction P0111Intake Air Temperature Sensor Range/Performance Problem P0112Intake Air Temperature Sensor Low Input P0113Intake Air Temperature Sensor High Input P0115Engine Coolant Temperature Sensor Circuit P0116Engine Coolant Temperature Sensor Range/Performance P0117Engine Coolant Temperature Sensor Circuit Low Input P0118Engine Coolant Temperature Sensor Circuit High Input P0120Throttle/Pedal Position Sensor A Circuit Malfunction P0121Throttle/Pedal Position Sensor A Range/Performance Problem P0171System Too Lean (Bank 1)P0174System Too Lean (Bank 2)P0191Fuel Rail Pressure Sensor Range/Performance P0202Injector Circuit/Open - Cylinder 2 P0203Injector Circuit/Open - Cylinder 3 P0204Injector Circuit/Open - Cylinder 4 P0205Injector Circuit/Open - Cylinder 5 P0206Injector Circuit/Open - Cylinder 6 P0207Injector Circuit/Open - Cylinder 7 P0208Injector Circuit/Open - Cylinder 8 P0300Random/Multiple Cylinder Misfire Detected P0301Cylinder 1 Misfire Detected P0302Cylinder 2 Misfire Detected P0303Cylinder 3 Misfire Detected P0304Cylinder 4 Misfire Detected P0308Cylinder 8 Misfire Detected P0402Exhaust Gas Recirculation Flow Excessive Detected P0440Evaporative Emission Control System Malfunction P0441Evaporative Emission Control System Incorrect Purge Flow P0444Evaporative Emission System Purge Control Valve Circuit Open P0505Idle Control System Malfunction P0506Idle Control System RPM Lower Than Expected P0507Idle Control System RPM Higher Than Expected P1004Short Runner Valve Control Performance P1005Fuel Shutoff Valve Control P1006Manifold Absolute Pressure Performance P1007Ignition Circuit Fault P1008Engine Coolant Bypass Valve Control P1010Mass Air Flow Circuit Fault P1011Fuel Pump Circuit Performance P1012Fuel Pressure Regulator Performance P1013Camshaft Position Actuator Fault P1014Exhaust Camshaft Position Performance P1015Engine Torque Management Fault P1016Reductant Quality Sensor Circuit P1017Reductant Injector Circuit P1018NOx Sensor Circuit Fault P1019Reductant Tank Heater Circuit P1020Throttle Actuator Position Fault P1021Oil Control Valve Performance P1022Intake Air Control Fault P1023Fuel Pressure Sensor Fault P1024Fuel Pump Control Module Fault P1025Engine Oil Pressure Control Fault P1026Coolant Control Valve Fault P1027Intake Valve Control Fault P1028EGR Temperature Sensor Fault P1029Exhaust Temperature Sensor Fault P1030Air Fuel Ratio Sensor Circuit P1031Air Fuel Ratio Sensor Heater Circuit P1032Oxygen Sensor Heater Control Circuit P1033NOx Sensor Signal Performance P1034Reductant Pressure Sensor Circuit P1035EGR Valve Position Sensor Circuit P1037Manifold Absolute Pressure Sensor Performance P1038Fuel Rail Pressure Control Performance P1039Fuel Injector Control Circuit P1040Variable Valve Timing Control Circuit P1041Camshaft Actuator Control Circuit P1042Engine Oil Temperature Sensor Circuit P1043Engine Oil Pressure Sensor Performance P1044Throttle Control System Performance P1045Throttle Control Motor Circuit P1046Turbocharger Control Circuit P1047Turbocharger Bypass Valve Circuit P1048Wastegate Control Solenoid Circuit P1049Boost Pressure Sensor Performance P1050Intake Camshaft Actuator Circuit Bank 1 P1052Intake Camshaft Actuator Circuit High Bank 1 P1053Exhaust Camshaft Actuator Circuit Bank 1 P1054Exhaust Camshaft Actuator Circuit Low Bank 1 P1055Exhaust Camshaft Actuator Circuit High Bank 1 P1056Intake Camshaft Actuator Circuit Bank 2 P1057Intake Camshaft Actuator Circuit Low Bank 2 P1058Intake Camshaft Actuator Circuit High Bank 2 P1059Exhaust Camshaft Actuator Circuit Bank 2 P1060Exhaust Camshaft Actuator Circuit Low Bank 2 P1061Exhaust Camshaft Actuator Circuit High Bank 2 P1062Fuel Pressure Control Circuit Low P1063Fuel Pressure Control Circuit High P1064Fuel Pressure Control Performance P1065EVAP Purge Flow Performance P1066EVAP Vent Control Performance P1067Secondary Air Injection Flow Performance P1068Secondary Air Pump Control Circuit P1069Secondary Air Valve Control Circuit P1070EGR Flow Performance P1071EGR Valve Control Circuit Low P1072EGR Valve Control Circuit High P1073Exhaust Gas Temperature Sensor Circuit P1074Exhaust Gas Temperature Sensor Range/Performance P1075Diesel Particulate Filter Pressure Sensor Circuit P1076Diesel Particulate Filter Regeneration Performance P1077Reductant Pump Control Circuit P1078Reductant Heater Control Circuit P1079SCR System Performance P1081Fuel Temperature Sensor Range/Performance P1082Intake Air Temperature Sensor Performance P1083Barometric Pressure Sensor Performance P1084MAP Sensor Rationality Fault P1085MAF Sensor Rationality Fault P1086Throttle Position Sensor Rationality Fault P1087Accelerator Pedal Position Sensor Fault P1088Idle Air Control Performance P1089Engine Speed Sensor Performance P1090Crankshaft Position Sensor Performance P1091Camshaft Position Sensor Performance P1092Ignition Coil Control Circuit P1093Fuel Injector Supply Voltage Circuit P1094Fuel Injector Control Module Fault P1095Fuel Pump Relay Control Circuit P1096Cooling Fan Relay Control Circuit P1097Starter Relay Control Circuit P1098Alternator Control Circuit P1099System Voltage Performance P1100Mass Air Flow Sensor Intermittent P1101Mass Air Flow Sensor Out of Self-Test Range P1102Mass Air Flow Sensor Signal Low P1103Mass Air Flow Sensor Signal High P1104Mass Air Flow Sensor Ground Fault P1105MAP/BARO Pressure Switch Solenoid Valve P1106MAP Sensor Circuit Range/Performance P1107MAP Sensor Circuit Low Voltage P1108MAP Sensor Circuit High Voltage P1109Intake Air Temperature Sensor Intermittent P1110Intake Valve Timing Control Solenoid P1111Intake Air Temperature Sensor Intermittent High Voltage P1112Intake Air Temperature Sensor Intermittent Low Voltage P1113Intake Air Temperature Sensor Open Circuit P1114Engine Coolant Temperature Sensor Low Voltage P1115Engine Coolant Temperature Sensor Circuit Intermittent P1116Engine Coolant Temperature Sensor Out of Range P1117Engine Coolant Temperature Sensor Intermittent P1118Engine Coolant Temperature Sensor Signal High P1119Engine Coolant Temperature Sensor Signal Low P1120Throttle Position Sensor Circuit P1121Throttle Position Sensor Inconsistent P1122Throttle Position Sensor Low Input P1123Throttle Position Sensor High Input P1124Throttle Position Sensor Intermittent P1125Throttle Control Motor Circuit P1126Throttle Control Motor Range/Performance P1127Exhaust Temperature Sensor Too High P1128Fuel Trim System Too Lean P1129Fuel Trim System Too Rich P1130Heated Oxygen Sensor Insufficient Switching P1131Lack of HO2S Switch Indicates Lean P1132Lack of HO2S Switch Indicates Rich

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I have a codeType P0300, P0420, P0171, or any code your scanner shows.Engine is misfiringRough idle, shaking, flashing Check Engine Light, or loss of power.EVAP / gas cap issueFuel smell, emissions leak, small leak, large leak, purge or vent valve.Runs lean or richFuel trims, vacuum leaks, MAF issues, hesitation, or poor fuel economy.Oxygen sensor / catalystO2 sensor response, heater circuit, catalyst efficiency, emissions failure.Transmission problemHarsh shifting, slipping, incorrect gear ratio, solenoid or speed sensor codes.

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P CodesPowertrain Codes1,045 published B CodesBody Codes0 published C CodesChassis Codes0 published U CodesNetwork Codes0 published

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P0010Intake Camshaft Position Actuator Circuit (Bank 1)P0011Intake Camshaft Position Timing Over-Advanced (Bank 1)P0012Intake Camshaft Position Timing Over-Retarded (Bank 1)P0013Exhaust Camshaft Position Actuator Circuit (Bank 1)P0014Exhaust Camshaft Position Timing Over-Advanced (Bank 1)P0016Crankshaft/Camshaft Position Correlation (Bank 1 Sensor A)P0017Crankshaft/Camshaft Position Correlation (Bank 1 Sensor B)P0087Fuel Rail/System Pressure Too Low P0088Fuel Rail/System Pressure Too High P0100Mass Air Flow Circuit Malfunction P0101Mass Air Flow Circuit Range/Performance P0102Mass Air Flow Circuit Low Input

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Rough Idle Engine Shaking Poor Fuel Economy No Start / Hard Start EVAP Leak Catalyst Problem Running Lean Oxygen Sensor Transmission Shifting Overheating / Coolant

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