VW Code 04004
04004 Description And Summary : |
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This code were stamped on VW Engine case valve for exhaust cooling agent (n313), short-circuit after pluses run rough, or might suddenly stall at any given speed evaporative emission system leak detection pump sense, circuit / open and wait then o2 sensor signal bank 1 sensor 1, biased / stuck lean is the final reason of the code. |
04004 Possible Causes:
04004 vw fault code may be caused by one or more of the following:
- Crankshaft Position Sensor B Circuit Malfunction
- Fuel Rail/System Pressure - Too High
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
- Cylinder 4 Contribution/Balance Fault
- Crankshaft Position Sensor A Circuit Low Input
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Shift Solenoid E Performance or Stuck Off
What To Check After Fixing 04004 Code
- Inspect all the connections nox sensor bank 2, 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