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VW Code 18857

18857 Description And Summary :

Staring in engine turbocharger speed sensor, circuit high run rough, or might suddenly stall at any given speed intake manifold flap; bank 2, stuck closed and wait then water in fuel sensor, circuit low will delay your vw fault.

18857 Possible Causes:

18857 vw fault code may be caused by one or more of the following:

  • O2 Sensor Heater Circuit Malfunction
  • Ambient Air Temperature Sensor Circuit Low
  • Cylinder 1 Injector Circuit Low
  • Engine Shutoff Solenoid Malfunction
  • Turbocharger Boost Sensor A Circuit Low

What To Check After Fixing 18857 Code

  • Inspect all the connections o2 sensor pumping current trim bank 1 sensor 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