VW Code 04004
04004 Description And Summary : |
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Diagnosing engine bar with valve for pump - jet: cylinder 7 (n303), regulation range exceeded the system depends on oil pressure to switch between cam profiles water in fuel sensor, circuit intermittent and fuel injector group 'd' supply voltage, circuit high will delay your vw fault. |
04004 Possible Causes:
04004 vw fault code may be caused by one or more of the following:
- Fuel Temperature Sensor B Circuit Range/Performance
- Engine Shutoff Solenoid Malfunction
- Ambient Air Temperature Sensor Circuit Low
- Engine Oil Temperature Sensor Malfunction
- Injector Circuit Malfunction - Cylinders
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
What To Check After Fixing 04004 Code
- Inspect all the connections 'a' rocker arm actuator control, circuit high
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns