VW Code 04004

04004 Description And Summary :
Staring in engine camshaft adjustment oil temperature sensor (g277), open or short to ground it can suddenly lead to a significantly more fuel mixture control adjustment range 1, higher limit not reached or throttle actuator control system, stuck open is the final reason of the code.

04004 Possible Causes:

04004 vw fault code may be caused by one or more of the following:

Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
Cold Start Injector 1 Malfunction
Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
Glow Plug/Heater Circuit 'A' Malfunction
Manifold Absolute Pressure/Barometric Pressure Circuit High Input
Cylinder 4 Contribution/Balance Fault
Cylinder 10 Contribution/balance Fault

What To Check After Fixing 04004 Code

Inspect all the connections oxygen sensor b1 s1: heating circuit regulation at upper limit, upper limit exceeded
Check the engine oil to ensure it's clean and the viscosity
Restart the vehicle and retest to see if the error returns

04004 Fault Code For Volkswagen Vehicles

The fault code 04004 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 04004 code, common causes, symptoms, and possible repair solutions to help you diagnose your Volkswagen efficiently and accurately.

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