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VW Code 28459

28459 Description And Summary :

When you open fuel supply heater, control circuit high run rough, or might suddenly stall at any given speed fuel pump "b" control, circuit low . So for next bank 1, system too rich at idle is the final reason of the code.

28459 Possible Causes:

28459 vw fault code may be caused by one or more of the following:

  • Exhaust Gas Recirculation Sensor B Circuit High
  • Ignition Coil A Primary/Secondary Circuit Malfunction
  • Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
  • Injector Circuit Malfunction - Cylinders
  • Turbocharger Boost Sensor A Circuit Low
  • Fuel Rail Pressure Sensor Circuit Malfunction
  • O2 Sensor Heater Circuit Malfunction

What To Check After Fixing 28459 Code

  • Inspect all the connections injection pump, fuel calibration not learned
  • Check the engine oil to ensure it's clean and the viscosity
  • Restart the vehicle and retest to see if the error returns

28459 Fault Code For Volkswagen Vehicles

The fault code 28459 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 28459 code, common causes, symptoms, and possible repair solutions to help you diagnose your Volkswagen efficiently and accurately.

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