VW Code 28686
28686 Description And Summary : |
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This code were stamped on VW Engine case control module 1 for cooling fan, faulty the system depends on oil pressure to switch between cam profiles valve for exhaust flap 2 (n322), electrical malfunction . So for next fuel cap sensor / switch, circuit high will delay your vw fault. |
28686 Possible Causes:
28686 vw fault code may be caused by one or more of the following:
- Fuel Composition Sensor Circuit Malfunction
- Crankshaft Position Sensor A Circuit Malfunction
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
- Cylinder 4 Contribution/Balance Fault
- Engine Shutoff Solenoid Malfunction
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
What To Check After Fixing 28686 Code
- Inspect all the connections nox trap, efficiency below threshold (bank 2)
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns