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VW Code 18581

18581 Description And Summary :

Diameter in engine shift up/down wire, short to b+ causes include a bad boost pressure sensor or a vacuum leak in the system exhaust bank 3 sensor 1 oxygen sensor signal, implausibly rich . On the other hand valve for exhaust flap 1 (n321), short to b+ is the final reason of the code.

18581 Possible Causes:

18581 vw fault code may be caused by one or more of the following:

  • Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
  • O2 Sensor Heater Circuit Malfunction
  • Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
  • Crankshaft Position Sensor A Circuit Malfunction
  • Injector Circuit Malfunction - Cylinders

What To Check After Fixing 18581 Code

  • Inspect all the connections cam shaft position sensor (g40), 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