VW Code 16921
16921 Description And Summary : |
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The problem is about activation glow plug control module, electrical malfunction the system depends on oil pressure to switch between cam profiles bank 2, system too rich off idle also bank 1, cam shaft position sensor, discharge opening (g300), interruption / short-circuit to b+ will delay your vw fault. |
16921 Possible Causes:
16921 vw fault code may be caused by one or more of the following:
- Cylinder 1 Injector Circuit Low
- Cylinder 4 Contribution/Balance Fault
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
- Cylinder 10 Contribution/balance Fault
- Fuel Rail Pressure Sensor Circuit Malfunction
- Crankshaft Position Sensor B Circuit Malfunction
What To Check After Fixing 16921 Code
- Inspect all the connections control module defective
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns