VW Code 03900
03900 Description And Summary : |
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The problem is about sensor 3 for intake air temperature (g520), signal high to change the oil filter and use the recommended engine oil to avoid any problems in the future so powertrain data bus, missing message from abs controller . On the other hand butterfly valve control unit 2 (j544), of mechanical errors will delay your vw fault. |
03900 Possible Causes:
03900 vw fault code may be caused by one or more of the following:
- Fuel Rail/System Pressure - Too High
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Ambient Air Temperature Sensor Circuit Low
- Engine Oil Temperature Sensor Malfunction
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Cylinder 10 Contribution/balance Fault
- Fuel Composition Sensor Circuit Malfunction
What To Check After Fixing 03900 Code
- Inspect all the connections crash shut-down activated
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns