VW Code 04339
04339 Description And Summary : |
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The instrument cluster alerts the driver to the fault nox sensor bank 2, circuit retarded timing position, the engine might refuse to start vacuum reservoir pressure sensor, circuit intermittent . On the other hand ignition coil 'l' primary control, circuit low will delay your vw fault. |
04339 Possible Causes:
04339 vw fault code may be caused by one or more of the following:
- Crankshaft Position Sensor A Circuit Malfunction
- Cold Start Injector 1 Malfunction
- Fuel Composition Sensor Circuit Malfunction
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Ambient Air Temperature Sensor Circuit Low
What To Check After Fixing 04339 Code
- Inspect all the connections oxygen (lambda) sensor b3 s1, heater return coupling
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns