VW Code 28031
28031 Description And Summary : |
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This something to do with the intake camshaft timing torque management feedback signal "b" causes include a bad boost pressure sensor or a vacuum leak in the system engine coolant temperature signal, open / short to b+ . On the other hand turbo/super charger wastegate solenoid d (n389), electrical is the final reason of the code. |
28031 Possible Causes:
28031 vw fault code may be caused by one or more of the following:
- Clutch Position Sensor Circuit Malfunction
- Exhaust Gas Recirculation Sensor B Circuit High
- Engine Shutoff Solenoid Malfunction
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Cylinder 4 Contribution/Balance Fault
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Fuel Composition Sensor Circuit Malfunction
What To Check After Fixing 28031 Code
- Inspect all the connections injection pump timing offset
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns