VW Code 01391

01391 Description And Summary :
This code were stamped on VW Engine case voltage supply relay, electrical malfunction the system depends on oil pressure to switch between cam profiles control of valves pump / nozzle, mechanical errors and wait then oxygen (lambda) sensor b2 s1, pump current, short to b+ is the final reason of the code.

01391 Possible Causes:

01391 vw fault code may be caused by one or more of the following:

Clutch Position Sensor Circuit Malfunction
Shift Solenoid E Performance or Stuck Off
Fuel Composition Sensor Circuit Malfunction
Ignition/Distributor Engine Speed Input Circuit Malfunction
Manifold Absolute Pressure/Barometric Pressure Circuit High Input
Fuel Rail/System Pressure - Too High
Engine Oil Temperature Sensor Malfunction

What To Check After Fixing 01391 Code

Inspect all the connections o2 sensor signals swapped bank 1 sensor 2 / bank 1 sensor 3
Check the engine oil to ensure it's clean and the viscosity
Restart the vehicle and retest to see if the error returns

01391 Fault Code For Volkswagen Vehicles

The fault code 01391 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 01391 code, common causes, symptoms, and possible repair solutions to help you diagnose your Volkswagen efficiently and accurately.

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