Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Engine Performance DTCS
/Input P0108 Manifold Absolute Pressure Sensor Circuit High Voltage/Input P0112 Intake Air Temperature Sensor Circuit Low Voltage/Input P0113 Intake Air Temperature Sensor Circuit High Voltage/Input P0116 Engine Coolant Temperature Sensor Range/Performance Problem P0117 Engine Coolant Temperature Sensor Circuit Low Voltage/Input P0118 Engine Coolant Temperature Sensor Circuit High Voltage/Input P0122 Throttle Position Sensor Circuit Low Voltage/Input P0123 Throttle Position Sensor Circuit High Voltage/Input P0128 Thermostat Range/Performance Problem P0131 Primary Heated Oxygen Sensor Circuit Low Voltage P0132 Primary Heated Oxygen Sensor Circuit High Voltage P0133 Primary Heated Oxygen Sensor Circuit Slow Response P0135 Primary Heated Oxygen Sensor Heater Circuit Malfunction P0137 Secondary Heated Oxygen Sensor Circuit Low Voltage P0138 Secondary Heated Oxygen Sensor Circuit High Voltage P0139 Secondary Heated Oxygen Sensor Slow Response P0141 Secondary Heated Oxygen Sensor Heater Circuit Malfunction P0171 Fuel System Too Lean P0172 Fuel System Too Rich P0300 Random Misfire P0301 Cylinder No. 1 Misfire Detected P0302 Cylinder No. 2 Misfire Detected P0303 Cylinder No. 3 Misfire Detected P0304 Cylinder No. 4 Misfire Detected P0305 Cylinder No. 5 Misfire Detected P0306 Cylinder No. 6 Misfire Detected P0325 Knock Sensor Circuit Malfunction P0335 Crankshaft Position Sensor "A" Circuit Malfunction P0336 Crankshaft Position Sensor "A" Intermittent Interruption P0335 Crankshaft Position Sensor "A" Circuit Malfunction P0336 Crankshaft Position Sensor "A" Range/Performance Problem P0340 Camshaft Position Sensor "A" Circuit Malfunction P0341 Camshaft Position Sensor "A" Circuit Range/Performance Problem Interruption P0365 Camshaft Position Sensor "B" Circuit Malfunction P0366 Camshaft Position Sensor "B" Circuit Range/Performance Problem Interruption P0385 Crankshaft Position Sensor "B" No Signal P0386 Crankshaft Position Sensor "B" Intermittent Interruption P0401 Exhaust Gas Recirculation Insufficient Flow Detected P0420 Catalyst System Efficiency Below Threshold P0451 Fuel Tank Pressure Sensor Range/Performance Problem P0452 Fuel Tank Pressure Sensor Low Voltage P0453 Fuel Tank Pressure Sensor High Voltage P0505 Idle Control System Malfunction P0715 Mainshaft Speed Sensor Circuit Malfunction P0720 Countershaft Speed Sensor Circuit Malfunction P1106 Barometric Pressure Sensor Range/Performance Problem P1107 Barometric Pressure Sensor Circuit Low Voltage P1108 Barometric Pressure Sensor Circuit High Voltage P1121 Throttle Position Sensor Signal Lower Than Expected P1122 Throttle Position Sensor Signal Higher Than Expected P1128 Manifold Absolute Pressure Sensor Signal Lower Than Expected P1129 Manifold Absolute Pressure Sensor Signal Higher Than Expected P1259 Variable Valve Timing & Lift Electronic Control System Malfunction P1297 Electrical Load Detector Circuit Low Voltage P1298 Electrical Load Detector Circuit High Voltage P1361 Camshaft Position Sensor "A" Intermittent Interruption P1362 Camshaft Position Sensor "A" No Signal P1366 Camshaft Position Sensor "A" Intermittent Interruption P1367 Camshaft Position Sensor "A" No Signal P1456 Evaporative Emission Control System Leak Detected (Fuel Tank System) P1457 Evaporative Emission Control System Leak Detected (EVAP Control Canister System) P1486 Thermostat Range/Performance Problem P1491 Exhaust Gas Recirculation Valve Insufficient Lift Detected P1498 Exhaust Gas Recirculation Valve Lift Sensor High Voltage P1519 Idle Air Control Valve Circuit Malfunction P1607 Powertrain Control Module Internal Circuit Malfunction P1676 Frame-To-Powertrain Torque Down Request Signal Line Failure P1678 Frame-To-Powertrain Torque Down Request Signal Line Failure
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.
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