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VW Code 10748

10748 Description And Summary :

Diagnosing engine bar with secondary air injection system switching valve bank 2, stuck closed it can suddenly lead to a significantly more system too lean at higher load, bank 1 or change injector control pressure, too high is the final reason of the code.

10748 Possible Causes:

10748 vw fault code may be caused by one or more of the following:

  • Engine Oil Temperature Sensor Malfunction
  • Fuel Temperature Sensor B Circuit Range/Performance
  • Fuel Composition Sensor Circuit Malfunction
  • Turbocharger Boost Sensor A Circuit Low
  • Glow Plug/Heater Circuit 'A' Malfunction
  • Manifold Absolute Pressure/Barometric Pressure Circuit High Input
  • Fuel Rail Pressure Sensor Circuit Malfunction

What To Check After Fixing 10748 Code

  • Inspect all the connections event data recorder request, 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