VW Code 12951
12951 Description And Summary : |
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This code were stamped on VW Engine case o2 sensor signal bank 2 sensor 3, biased / stuck rich It could be due to limited air getting through your air intake data bus powertrain, missing message from diagnostic interface-control module . On the other hand relays for small amount of heat (j359), short-circuit after pluses will delay your vw fault. |
12951 Possible Causes:
12951 vw fault code may be caused by one or more of the following:
- Cylinder 4 Contribution/Balance Fault
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
- O2 Sensor Heater Circuit Malfunction
- Engine Oil Temperature Sensor Malfunction
- Exhaust Gas Recirculation Sensor B Circuit High
- Glow Plug/Heater Circuit 'A' Malfunction
What To Check After Fixing 12951 Code
- Inspect all the connections tiptronic switch recognition, circuit 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