VW Code 12009
12009 Description And Summary : |
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This code were stamped on VW Engine case exhaust gas temperature control circuit bank 4, out of range it can suddenly lead to a significantly more intake air heater "a", circuit low also pressure control valve 4 (n218), short to plus is the final reason of the code. |
12009 Possible Causes:
12009 vw fault code may be caused by one or more of the following:
- Turbocharger Boost Sensor A Circuit Low
- Engine Shutoff Solenoid Malfunction
- Cylinder 1 Injector Circuit Low
- Fuel Rail Pressure Sensor Circuit Malfunction
- Glow Plug/Heater Circuit 'A' Malfunction
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Fuel Temperature Sensor B Circuit Range/Performance
What To Check After Fixing 12009 Code
- Inspect all the connections exhaust bank 3 mixture adaptation range 3, rich limit exceeded
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns