VW Code 04994
04994 Description And Summary : |
|---|
The problem is about intake manifold runner control, upper stop not reached it can suddenly lead to a significantly more data bus powertrain missing message from awd controller also intake manifold runner position sensor / switch, circuit bank 1 will delay your vw fault. |
04994 Possible Causes:
04994 vw fault code may be caused by one or more of the following:
- Fuel Rail/System Pressure - Too High
- Glow Plug/Heater Circuit 'A' Malfunction
- Reverse Input Circuit
- Cylinder 4 Contribution/Balance Fault
- Cold Start Injector 1 Malfunction
- Cylinder 1 Injector Circuit Low
- Ambient Air Temperature Sensor Circuit Low
What To Check After Fixing 04994 Code
- Inspect all the connections ignition coil 'd' primary control, short to plus
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns