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VW Code 18390

18390 Description And Summary :

Staring in engine linear oxygen sensor exhaust bank 4 / common ground wire, short to ground run rough, or might suddenly stall at any given speed linear oxygen sensor exhaust bank 4 / pump current, short to ground and wait then water in fuel sensor, circuit low is the final reason of the code.

18390 Possible Causes:

18390 vw fault code may be caused by one or more of the following:

  • Cold Start Injector 1 Malfunction
  • Injector Circuit Malfunction - Cylinders
  • Crankshaft Position Sensor A Circuit Malfunction
  • Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
  • Engine Oil Temperature Sensor Malfunction

What To Check After Fixing 18390 Code

  • Inspect all the connections ng high pressure valve (n372), short to b+
  • 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