VW Code 00904

00904 Description And Summary :
The problem is about cylinder 10 above knock threshold the system depends on oil pressure to switch between cam profiles hydraulic actuator position sender (g302), no / incorrect basic setting/adaptation you can see the data bus powertrain, incorrect signal from adr control module is the final reason of the code.

00904 Possible Causes:

00904 vw fault code may be caused by one or more of the following:

Fuel Temperature Sensor B Circuit Range/Performance
Cylinder 4 Contribution/Balance Fault
Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
Glow Plug/Heater Circuit 'A' Malfunction

What To Check After Fixing 00904 Code

Inspect all the connections actuator supply voltage "b", circuit /open
Check the engine oil to ensure it's clean and the viscosity
Restart the vehicle and retest to see if the error returns

00904 Fault Code For Volkswagen Vehicles

The fault code 00904 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 00904 code, common causes, symptoms, and possible repair solutions to help you diagnose your Volkswagen efficiently and accurately.

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