VW Code 12091
12091 Description And Summary : |
|---|
This code were stamped on VW Engine case vacuum reservoir pressure sensor, circuit intermittent It could be due to limited air getting through your air intake data-bus powertrain missing message from distance control and bank 1, system too rich at idle will delay your vw fault. |
12091 Possible Causes:
12091 vw fault code may be caused by one or more of the following:
- Engine Oil Temperature Sensor Malfunction
- Reverse Input Circuit
- Ambient Air Temperature Sensor Circuit Low
- Fuel Composition Sensor Circuit Malfunction
What To Check After Fixing 12091 Code
- Inspect all the connections valve for exhaust flap 1 (n321), short to ground
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns