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VW Code 18120

18120 Description And Summary :

Diameter in engine brake pressure switch (f270), implausible signal causes include a bad boost pressure sensor or a vacuum leak in the system transmission faulty you can see the coolant degassing valve, control circuit / open is the final reason of the code.

18120 Possible Causes:

18120 vw fault code may be caused by one or more of the following:

  • Fuel Rail Pressure Sensor Circuit Malfunction
  • Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
  • Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
  • Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
  • Cylinder 1 Injector Circuit Low
  • Ambient Air Temperature Sensor Circuit Low
  • Fuel Rail/System Pressure - Too High

What To Check After Fixing 18120 Code

  • Inspect all the connections generator lamp/l-terminal, 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