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VW Code 123

123 Description And Summary :

Diagnosing engine bar with intake manifold tuning (imt) valve position sensor / switch bank 1, circuit range / performance It could be due to limited air getting through your air intake please check dtc memory of instrument cluster . On the other hand accelerator pedal position sensor 1 (g79), signal too low is the final reason of the code.

123 Possible Causes:

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

  • Manifold Absolute Pressure/Barometric Pressure Circuit High Input
  • Fuel Temperature Sensor B Circuit Range/Performance
  • O2 Sensor Heater Circuit Malfunction
  • Reverse Input Circuit
  • Cylinder 1 Injector Circuit Low
  • Shift Solenoid E Performance or Stuck Off
  • Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)

What To Check After Fixing 123 Code

  • Inspect all the connections valve for pump - jet: cylinder 7 (n303), circuit low input
  • Check the engine oil to ensure it's clean and the viscosity
  • Restart the vehicle and retest to see if the error returns

123 Fault Code For Volkswagen Vehicles

The fault code 123 is associated with Volkswagen (VW) vehicles and indicates a specific issue detected by the onboard diagnostics (OBD) system. Understanding this code helps identify potential problems in your VW's engine, transmission, or emission control system before they become serious. This page provides a detailed explanation of the 123 code, common causes, symptoms, and possible repair solutions to help you diagnose your Volkswagen efficiently and accurately.

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