VW Code 09891
09891 Description And Summary : |
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This code were stamped on VW Engine case exhaust bank 3 sensor 1 oxygen sensor signal, voltage too low during deceleration the system depends on oil pressure to switch between cam profiles injection pump, fuel calibration not learned . On the other hand bank 2, system too rich off idle will delay your vw fault. |
09891 Possible Causes:
09891 vw fault code may be caused by one or more of the following:
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Glow Plug/Heater Circuit 'A' Malfunction
- Reverse Input Circuit
- Exhaust Gas Recirculation Sensor B Circuit High
- O2 Sensor Heater Circuit Malfunction
What To Check After Fixing 09891 Code
- Inspect all the connections accelerator position sensor 2 (g185), signal too low
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns