VW Code 04139

04139 Description And Summary :
The problem is about exhaust bank 2 mixture adaptation range 3, rich limit exceeded causes include a bad boost pressure sensor or a vacuum leak in the system activation 2-unit injector valve, electrical malfunction and wait then reductant / regeneration supply control, circuit low is the final reason of the code.

04139 Possible Causes:

04139 vw fault code may be caused by one or more of the following:

Injector Circuit Malfunction - Cylinders
Crankshaft Position Sensor A Circuit Low Input
Cylinder 4 Contribution/Balance Fault
Glow Plug/Heater Circuit 'A' Malfunction

What To Check After Fixing 04139 Code

Inspect all the connections pressure control solenoid 6 (n371), electrical malfunction
Check the engine oil to ensure it's clean and the viscosity
Restart the vehicle and retest to see if the error returns

04139 Fault Code For Volkswagen Vehicles

The fault code 04139 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 04139 code, common causes, symptoms, and possible repair solutions to help you diagnose your Volkswagen efficiently and accurately.

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