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VW Code 18674

18674 Description And Summary :

The problem is about power supply terminal 30, voltage too low causes include a bad boost pressure sensor or a vacuum leak in the system evaporative emission system switching valve, stuck closed you can see the power supply, voltage low voltage is the final reason of the code.

18674 Possible Causes:

18674 vw fault code may be caused by one or more of the following:

  • Manifold Absolute Pressure/Barometric Pressure Circuit High Input
  • Shift Solenoid E Performance or Stuck Off
  • Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
  • Engine Shutoff Solenoid Malfunction
  • Cold Start Injector 1 Malfunction
  • Fuel Temperature Sensor B Circuit Range/Performance
  • Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)

What To Check After Fixing 18674 Code

  • Inspect all the connections exhaust bank 1 sensor 1 oxygen sensor signal, voltage too low during deceleration
  • 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