VW Code 28191
28191 Description And Summary : |
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Staring in engine exhaust bank 1 sensor 1 o2 sensor signal, implausibly lean retarded timing position, the engine might refuse to start evaporative emission system leak detection pump control, circuit / open . So for next fuel injection valve 3 (n368), short to ground will delay your vw fault. |
28191 Possible Causes:
28191 vw fault code may be caused by one or more of the following:
- Shift Solenoid E Performance or Stuck Off
- Glow Plug/Heater Circuit 'A' Malfunction
- Fuel Composition Sensor Circuit Malfunction
- Crankshaft Position Sensor A Circuit Low Input
- Ambient Air Temperature Sensor Circuit Low
What To Check After Fixing 28191 Code
- Inspect all the connections secondary air injection system control 'a', circuit low
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns