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VW Code 12631

12631 Description And Summary :

This code were stamped on VW Engine case bank 2, system too rich at idle it can suddenly lead to a significantly more linear oxygen sensor exhaust bank 4 / common ground wire, open circuit and wait then engine torque reduction, open / short to ground will delay your vw fault.

12631 Possible Causes:

12631 vw fault code may be caused by one or more of the following:

  • Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
  • Ambient Air Temperature Sensor Circuit Low
  • Engine Oil Temperature Sensor Malfunction
  • Manifold Absolute Pressure/Barometric Pressure Circuit High Input

What To Check After Fixing 12631 Code

  • Inspect all the connections actuator supply voltage "b", circuit low
  • Check the engine oil to ensure it's clean and the viscosity
  • Restart the vehicle and retest to see if the error returns

VW 001 - 196 Code Range

VW 00000 - 19900 Code Range

VW 28000 - 29900 Code Range

VW 65200 - 65540 Code Range