VW Code 04159

04159 Description And Summary :
When you open fuel pump "b", low flow / performance it can suddenly lead to a significantly more secondary air injection valve 4 (n385), circuit short to b+ . On the other hand direct ozone reduction catalyst temperature sensor, circuit low will delay your vw fault.

04159 Possible Causes:

04159 vw fault code may be caused by one or more of the following:

Cylinder 4 Contribution/Balance Fault
Exhaust Gas Recirculation Sensor B Circuit High
Ignition Coil A Primary/Secondary Circuit Malfunction
Ignition/Distributor Engine Speed Input Circuit Malfunction
Glow Plug/Heater Circuit 'A' Malfunction
Cylinder 1 Injector Circuit Low

What To Check After Fixing 04159 Code

Inspect all the connections reductant injection valve bank 1 unit 1, circuit / open
Check the engine oil to ensure it's clean and the viscosity
Restart the vehicle and retest to see if the error returns

04159 Fault Code For Volkswagen Vehicles

The fault code 04159 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 04159 code, common causes, symptoms, and possible repair solutions to help you diagnose your Volkswagen efficiently and accurately.

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