VW Code 04398

04398 Description And Summary :
The problem is about throttle actuator control motor current, range / performance causes include a bad boost pressure sensor or a vacuum leak in the system diesel particulate filter differential pressure too high bank 2 . On the other hand injector cylinder 14 (n391), circuit high is the final reason of the code.

04398 Possible Causes:

04398 vw fault code may be caused by one or more of the following:

Ignition Coil A Primary/Secondary Circuit Malfunction
Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
Fuel Composition Sensor Circuit Malfunction
Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
Glow Plug/Heater Circuit 'A' Malfunction
Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
Reverse Input Circuit
Shift Solenoid E Performance or Stuck Off

What To Check After Fixing 04398 Code

Inspect all the connections intake manifold runner control, lower stop not reached
Check the engine oil to ensure it's clean and the viscosity
Restart the vehicle and retest to see if the error returns

04398 Fault Code For Volkswagen Vehicles

The fault code 04398 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 04398 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