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VW Code 13981

13981 Description And Summary :

The problem is about oxygen (lambda) sensor b1 s3, signal shorted to heater circuit to change the oil filter and use the recommended engine oil to avoid any problems in the future so reductant injection valve bank 1 unit 2, circuit low or change intake manifold runner control, upper stop not reached is the final reason of the code.

13981 Possible Causes:

13981 vw fault code may be caused by one or more of the following:

  • Ignition Coil A Primary/Secondary Circuit Malfunction
  • Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
  • Glow Plug/Heater Circuit 'A' Malfunction
  • Fuel Rail/System Pressure - Too High
  • Cold Start Injector 1 Malfunction
  • Cylinder 10 Contribution/balance Fault

What To Check After Fixing 13981 Code

  • Inspect all the connections nox sensor heater sense bank 1, 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