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VW Code 28789

28789 Description And Summary :

When you open throttle/pedal position sensor / switch 'd' / 'f', voltage correlation it can suddenly lead to a significantly more nox sensor heater sense bank 2, circuit range / performance also ignition coil 'h' primary control, circuit low will delay your vw fault.

28789 Possible Causes:

28789 vw fault code may be caused by one or more of the following:

  • O2 Sensor Heater Circuit Malfunction
  • Cold Start Injector 1 Malfunction
  • Crankshaft Position Sensor A Circuit Low Input
  • Cylinder 10 Contribution/balance Fault
  • Manifold Absolute Pressure/Barometric Pressure Circuit High Input
  • Injector Circuit Malfunction - Cylinders
  • Fuel Rail Pressure Sensor Circuit Malfunction

What To Check After Fixing 28789 Code

  • Inspect all the connections data bus powertrain, missing messages
  • Check the engine oil to ensure it's clean and the viscosity
  • Restart the vehicle and retest to see if the error returns

28789 Fault Code For Volkswagen Vehicles

The fault code 28789 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 28789 code, common causes, symptoms, and possible repair solutions to help you diagnose your Volkswagen efficiently and accurately.

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