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VW Code 28394

28394 Description And Summary :

This something to do with the intake camshaft timing fuel injector group 'c' supply voltage, circuit / open causes include a bad boost pressure sensor or a vacuum leak in the system evaporative emissions (evap) fuel vapour temperature sensor, circuit high voltage or change water in fuel sensor, circuit is the final reason of the code.

28394 Possible Causes:

28394 vw fault code may be caused by one or more of the following:

  • Timing Reference High Resolution Signal A Too Many Pulses
  • Cylinder 4 Contribution/Balance Fault
  • Crankshaft Position Sensor A Circuit Low Input
  • Reverse Input Circuit
  • Crankshaft Position Sensor B Circuit Malfunction
  • Engine Oil Temperature Sensor Malfunction
  • Throttle/Pedal Position Sensor/Switch A Circuit Intermittent

What To Check After Fixing 28394 Code

  • Inspect all the connections o2 sensor signal bank 1 sensor 1, biased / stuck rich
  • Check the engine oil to ensure it's clean and the viscosity
  • Restart the vehicle and retest to see if the error returns

28394 Fault Code For Volkswagen Vehicles

The fault code 28394 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 28394 code, common causes, symptoms, and possible repair solutions to help you diagnose your Volkswagen efficiently and accurately.

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