VW Code 18646
18646 Description And Summary : |
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When you open system too lean at higher load, bank 1 run rough, or might suddenly stall at any given speed oxygen (lambda) sensor b2 s1, signal shorted to heater circuit and wait then reductant injection air pump control, circuit high is the final reason of the code. |
18646 Possible Causes:
18646 vw fault code may be caused by one or more of the following:
- Clutch Position Sensor Circuit Malfunction
- Engine Oil Temperature Sensor Malfunction
- Shift Solenoid E Performance or Stuck Off
- Fuel Rail Pressure Sensor Circuit Malfunction
What To Check After Fixing 18646 Code
- Inspect all the connections o2 sensor signal bank 2 sensor 2, biased / stuck lean
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns