VW Code 04351

04351 Description And Summary :
Staring in engine exhaust bank 4 sensor 1 heater circuit, internal resistance too large run rough, or might suddenly stall at any given speed o2 sensor pumping current trim bank 2 sensor 1, circuit high or change secondary air injection pump-d-relay (j705), circuit open circuit is the final reason of the code.

04351 Possible Causes:

04351 vw fault code may be caused by one or more of the following:

Timing Reference High Resolution Signal A Too Many Pulses
Cold Start Injector 1 Malfunction
Ignition/Distributor Engine Speed Input Circuit Malfunction
Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)

What To Check After Fixing 04351 Code

Inspect all the connections pressure control valve 4 (n218), short to plus
Check the engine oil to ensure it's clean and the viscosity
Restart the vehicle and retest to see if the error returns

04351 Fault Code For Volkswagen Vehicles

The fault code 04351 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 04351 code, common causes, symptoms, and possible repair solutions to help you diagnose your Volkswagen efficiently and accurately.

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