VW Code 00781

00781 Description And Summary :
Staring in engine exhaust bank 3 mixture adaptation range 3, rich limit exceeded run rough, or might suddenly stall at any given speed fuel injection valve 4 (n369), short to b+ and wait then exhaust bank 1/2 lambda probes after kat exchanges is the final reason of the code.

00781 Possible Causes:

00781 vw fault code may be caused by one or more of the following:

Shift Solenoid E Performance or Stuck Off
Glow Plug/Heater Circuit 'A' Malfunction
Cylinder 10 Contribution/balance Fault
Ambient Air Temperature Sensor Circuit Low
Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
Reverse Input Circuit
Crankshaft Position Sensor B Circuit Malfunction
Manifold Absolute Pressure/Barometric Pressure Circuit High Input

What To Check After Fixing 00781 Code

Inspect all the connections linear oxygen sensor exhaust bank 4 / common ground wire, short 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

00781 Fault Code For Volkswagen Vehicles

The fault code 00781 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 00781 code, common causes, symptoms, and possible repair solutions to help you diagnose your Volkswagen efficiently and accurately.

VW 001 - 196 Code Range

Page 1

VW 00000 - 19900 Code Range

VW 28000 - 29900 Code Range

VW 65200 - 65540 Code Range

Page 24