VW Code 04312
04312 Description And Summary : |
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Diameter in engine glow plug/heater relay 2 circuit, open or short to ground to change the oil filter and use the recommended engine oil to avoid any problems in the future so controller for radiator exhaust oh run (j138), interruption / short-circuit after mass and fuel injector group 'd' supply voltage, circuit low will delay your vw fault. |
04312 Possible Causes:
04312 vw fault code may be caused by one or more of the following:
- O2 Sensor Heater Circuit Malfunction
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
- Cylinder 10 Contribution/balance Fault
- Injector Circuit Malfunction - Cylinders
- Fuel Rail Pressure Sensor Circuit Malfunction
What To Check After Fixing 04312 Code
- Inspect all the connections nox sensor heater control bank 2, circuit / open
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns