VW Code 12804
12804 Description And Summary : |
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Diagnosing engine bar with fuel injection valve 3 (n368), short to b+ run rough, or might suddenly stall at any given speed glow plug/heater relay circuit, electrical or change exhaust gas recirculation flow, excessive detected is the final reason of the code. |
12804 Possible Causes:
12804 vw fault code may be caused by one or more of the following:
- Fuel Rail/System Pressure - Too High
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Glow Plug/Heater Circuit 'A' Malfunction
- Engine Shutoff Solenoid Malfunction
- Fuel Temperature Sensor B Circuit Range/Performance
What To Check After Fixing 12804 Code
- Inspect all the connections direct ozone reduction catalyst temperature sensor, circuit range / performance
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns