VW Code 04400

04400 Description And Summary :
Diameter in engine throttle closed position, performance It could be due to limited air getting through your air intake brake switch circuit, error message from engine contr. . On the other hand data-bus powertrain, implausible message from transmission controller will delay your vw fault.

04400 Possible Causes:

04400 vw fault code may be caused by one or more of the following:

Fuel Rail Pressure Sensor Circuit Malfunction
Cylinder 4 Contribution/Balance Fault
Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
Crankshaft Position Sensor B Circuit Malfunction
Fuel Temperature Sensor B Circuit Range/Performance
Exhaust Gas Recirculation Sensor B Circuit High
Manifold Absolute Pressure/Barometric Pressure Circuit High Input

What To Check After Fixing 04400 Code

Inspect all the connections linear oxygen sensor exhaust bank 2 / 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

04400 Fault Code For Volkswagen Vehicles

The fault code 04400 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 04400 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