VW Code 04399
04399 Description And Summary : |
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Diagnosing engine bar with vacuum reservoir pressure sensor, circuit range / performance mechanic will need to check all electrical connections in the camshaft sensor and wait then fuel cap sensor / switch, circuit high is the final reason of the code. |
04399 Possible Causes:
04399 vw fault code may be caused by one or more of the following:
- Exhaust Gas Recirculation Sensor B Circuit High
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Cylinder 4 Contribution/Balance Fault
- Ignition Coil A Primary/Secondary Circuit Malfunction
What To Check After Fixing 04399 Code
- Inspect all the connections gear/ratio monitoring adaptation, limit reached
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns