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VW Code 18746

18746 Description And Summary :

Diameter in engine exhaust bank 1 sensor 1 oxygen sensor signal, voltage too low during deceleration mechanic will need to check all electrical connections in the camshaft sensor secondary air injection system pump bank 1, stuck off and wait then charge pressure fan relay (j712), short to b+ is the final reason of the code.

18746 Possible Causes:

18746 vw fault code may be caused by one or more of the following:

  • Cold Start Injector 1 Malfunction
  • Fuel Rail Pressure Sensor Circuit Malfunction
  • Glow Plug/Heater Circuit 'A' Malfunction
  • Cylinder 1 Injector Circuit Low
  • Clutch Position Sensor Circuit Malfunction
  • Turbocharger Boost Sensor A Circuit Low
  • Cylinder 4 Contribution/Balance Fault

What To Check After Fixing 18746 Code

  • Inspect all the connections friction too high, intake cam adjustment bank 2
  • 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