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VW Code 28794

28794 Description And Summary :

Diameter in engine secondary air injection system air flow/pressure sensor bank 2, circuit range / performance retarded timing position, the engine might refuse to start cylinder 10 injector, data incompatible and wait then evaporative emissions (evap) fuel vapour temperature sensor, circuit is the final reason of the code.

28794 Possible Causes:

28794 vw fault code may be caused by one or more of the following:

  • Exhaust Gas Recirculation Sensor B Circuit High
  • Fuel Rail/System Pressure - Too High
  • Glow Plug/Heater Circuit 'A' Malfunction
  • Crankshaft Position Sensor B Circuit Malfunction
  • Cylinder 1 Injector Circuit Low
  • Turbocharger Boost Sensor A Circuit Low

What To Check After Fixing 28794 Code

  • Inspect all the connections evaporative emission system leak detection pump control, circuit high
  • Check the engine oil to ensure it's clean and the viscosity
  • Restart the vehicle and retest to see if the error returns

28794 Fault Code For Volkswagen Vehicles

The fault code 28794 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 28794 code, common causes, symptoms, and possible repair solutions to help you diagnose your Volkswagen efficiently and accurately.

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