VW Code 12904

12904 Description And Summary :
The problem is about angle sensors 2 for butterfly valve drive 2 (g298), signal too largely to change the oil filter and use the recommended engine oil to avoid any problems in the future so exhaust bank 3, probe 1 heating circuit interruption also signal line for fuel pump electronics, electrical malfunction is the final reason of the code.

12904 Possible Causes:

12904 vw fault code may be caused by one or more of the following:

Fuel Rail Pressure Sensor Circuit Malfunction
Fuel Composition Sensor Circuit Malfunction
Engine Shutoff Solenoid Malfunction
Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
Engine Oil Temperature Sensor Malfunction
Fuel Rail/System Pressure - Too High
Manifold Absolute Pressure/Barometric Pressure Circuit High Input
Crankshaft Position Sensor A Circuit Low Input

What To Check After Fixing 12904 Code

Inspect all the connections tiptronic switch up (f189), open circuit / signal to b+
Check the engine oil to ensure it's clean and the viscosity
Restart the vehicle and retest to see if the error returns

12904 Fault Code For Volkswagen Vehicles

The fault code 12904 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 12904 code, common causes, symptoms, and possible repair solutions to help you diagnose your Volkswagen efficiently and accurately.

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