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VW Code 18798

18798 Description And Summary :

This code were stamped on VW Engine case nox sensor heater control bank 2, circuit / open It could be due to limited air getting through your air intake intake manifold runner control, circuit high bank 1 you can see the coolant circulation pump relay (j151), open circuit is the final reason of the code.

18798 Possible Causes:

18798 vw fault code may be caused by one or more of the following:

  • Crankshaft Position Sensor B Circuit Malfunction
  • Engine Shutoff Solenoid Malfunction
  • O2 Sensor Heater Circuit Malfunction
  • Turbocharger Boost Sensor A Circuit Low

What To Check After Fixing 18798 Code

  • Inspect all the connections intake flap motor 2 (v275), no signal
  • 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