VW Code 12109
12109 Description And Summary : |
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Diameter in engine intake manifold tuning valve (bank 1), stuck closed It could be due to limited air getting through your air intake transmission mount valve 1 (n262), open circuit and wait then please check dtc memory of central electric control ecu will delay your vw fault. |
12109 Possible Causes:
12109 vw fault code may be caused by one or more of the following:
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Fuel Composition Sensor Circuit Malfunction
- Ignition/Distributor Engine Speed Input Circuit Malfunction
What To Check After Fixing 12109 Code
- Inspect all the connections exhaust bank 1 mixture adaptation range 3, lean limit not reached
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns