358 documented codes across 25 functional groups.
Engine, fuel, air, ignition, emissions and transmission. The overwhelming majority of what workshops bring to the AI.
358 documented codes across 25 functional groups.
By what part of the vehicle
- Not yet classified, 61 codes
- Transmission, 32 codes
- Turbo and boost control, 26 codes
- Fuel pressure and delivery, 21 codes
- Lambda and O2 sensors, 21 codes
- Air intake and MAF/MAP, 18 codes
- Valve timing and camshaft, 17 codes
- Diesel particulate filter, 15 codes
- Throttle and pedal, 15 codes
- ECU internal and software, 13 codes
- EVAP and fuel tank, 13 codes
- SCR and AdBlue, 12 codes
- Injectors, 10 codes
- Cooling and thermostat, 10 codes
- Idle and speed control, 10 codes
- Fuel trim: lean or rich, 9 codes
- Misfire, 8 codes
- EGR, 8 codes
- Glow plugs and preheat, 7 codes
- Exhaust pressure and temperature, 6 codes
- Engine oil and lubrication, 6 codes
- Hybrid and EV propulsion, 6 codes
- Charging and system voltage, 5 codes
- Ignition and knock sensing, 5 codes
- Catalytic converter, 4 codes
The ones we see most
- P0299, Turbocharger underboost condition
- P0420, Catalyst system efficiency below threshold, bank 1
- P2002, Diesel particulate filter efficiency below threshold, bank 1
- P0171, System too lean, bank 1
- P0300, Random or multiple cylinder misfire detected
- P0303, Cylinder 3 misfire detected
- P0301, Cylinder 1 misfire detected
- P0017, Crankshaft/camshaft position correlation, bank 1 sensor B
- P0011, A camshaft position timing over-advanced or system performance, bank 1
- P0087, Fuel rail/system pressure too low
- P0562, System voltage low
- P0101, Mass or volume air flow circuit range/performance
- P20EE, SCR NOx catalyst efficiency below threshold, bank 1
- P2563, Turbocharger boost control position sensor circuit range/performance
- P0400, Exhaust gas recirculation flow
- P0193, Fuel rail pressure sensor circuit high
- P0016, Crankshaft/camshaft position correlation, bank 1 sensor A
- P0135, O2 sensor heater circuit, bank 1 sensor 1
- P2263, Turbocharger boost system performance
- P0201, Injector circuit open, cylinder 1
- P0204, Injector circuit open, cylinder 4
- P0102, Mass or volume air flow circuit low input
- P2279, Intake air system leak
- P0302, Cylinder 2 misfire detected