VW Code 16921
16921 Description And Summary : |
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Accumulated in electronic control units so exhaust gas temperature sensor, bank 1 sensor 5, circuit range / performance run rough, or might suddenly stall at any given speed intake manifold runner position sensor / switch, circuit intermittent bank 2 also exhaust bank 4, sensor 2, tension too small will delay your vw fault. |
16921 Possible Causes:
16921 vw fault code may be caused by one or more of the following:
- Fuel Temperature Sensor B Circuit Range/Performance
- Crankshaft Position Sensor B Circuit Malfunction
- Crankshaft Position Sensor A Circuit Malfunction
- O2 Sensor Heater Circuit Malfunction
- Fuel Composition Sensor Circuit Malfunction
- Reverse Input Circuit
What To Check After Fixing 16921 Code
- Inspect all the connections intake manifold runner position sensor / switch, circuit 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