VW Code 28428
28428 Description And Summary : |
|---|
Diameter in engine fuel shutoff valve "b" control, circuit high mechanic will need to check all electrical connections in the camshaft sensor power supply voltage terminal 15, open circuit . On the other hand supply voltage for fuel injector group a, short to b+ is the final reason of the code. |
28428 Possible Causes:
28428 vw fault code may be caused by one or more of the following:
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Engine Shutoff Solenoid Malfunction
- Fuel Composition Sensor Circuit Malfunction
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
- Ambient Air Temperature Sensor Circuit Low
- Ignition Coil A Primary/Secondary Circuit Malfunction
- O2 Sensor Heater Circuit Malfunction
- Cylinder 10 Contribution/balance Fault
What To Check After Fixing 28428 Code
- Inspect all the connections turbocharger / supercharger boost system performance
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns