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VW Code 12720

12720 Description And Summary :

Diagnosing engine bar with intake manifold runner control, circuit high bank 2 retarded timing position, the engine might refuse to start activation 2-unit injector valve, short to b+ also throttle/fuel inhibit, circuit is the final reason of the code.

12720 Possible Causes:

12720 vw fault code may be caused by one or more of the following:

  • Glow Plug/Heater Circuit 'A' Malfunction
  • Fuel Rail Pressure Sensor Circuit Malfunction
  • Clutch Position Sensor Circuit Malfunction
  • Turbocharger Boost Sensor A Circuit Low
  • Crankshaft Position Sensor A Circuit Low Input
  • Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
  • Cylinder 4 Contribution/Balance Fault

What To Check After Fixing 12720 Code

  • Inspect all the connections fuel tank pressure (ftp) sensor (g400), short to ground
  • Check the engine oil to ensure it's clean and the viscosity
  • Restart the vehicle and retest to see if the error returns

12720 Fault Code For Volkswagen Vehicles

The fault code 12720 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 12720 code, common causes, symptoms, and possible repair solutions to help you diagnose your Volkswagen efficiently and accurately.

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