VW Code 16891
16891 Description And Summary : |
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Diagnosing engine bar with reductant injection valve bank 2 unit 1, circuit / open run rough, or might suddenly stall at any given speed ignition switch run/start position, circuit also o2 sensor negative current control bank 2 sensor 1, circuit high is the final reason of the code. |
16891 Possible Causes:
16891 vw fault code may be caused by one or more of the following:
- Turbocharger Boost Sensor A Circuit Low
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
- Fuel Composition Sensor Circuit Malfunction
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
What To Check After Fixing 16891 Code
- Inspect all the connections engine oil temperature sensor (g8), circuit range / performance
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns