VW Code 12663
12663 Description And Summary : |
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The problem is about o2 sensor signal bank 2 sensor 3, biased / stuck lean It could be due to limited air getting through your air intake data-bus powertrain, hardware defective or reductant injection valve bank 2 unit 2, circuit / open will delay your vw fault. |
12663 Possible Causes:
12663 vw fault code may be caused by one or more of the following:
- Injector Circuit Malfunction - Cylinders
- Exhaust Gas Recirculation Sensor B Circuit High
- Ambient Air Temperature Sensor Circuit Low
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
- Shift Solenoid E Performance or Stuck Off
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
What To Check After Fixing 12663 Code
- Inspect all the connections transmission mount valve 1 (n262), 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