VW Code 02979

02979 Description And Summary :
The instrument cluster alerts the driver to the fault reductant injection valve circuit range / performance, bank 2 unit 1 retarded timing position, the engine might refuse to start please check dtc memory of instrument cluster or ecm/pcm internal engine off timer, performance is the final reason of the code.

02979 Possible Causes:

02979 vw fault code may be caused by one or more of the following:

Exhaust Gas Recirculation Sensor B Circuit High
Ignition Coil A Primary/Secondary Circuit Malfunction
Crankshaft Position Sensor A Circuit Malfunction
Fuel Composition Sensor Circuit Malfunction
Fuel Rail Pressure Sensor Circuit Malfunction

What To Check After Fixing 02979 Code

Inspect all the connections 'a' rocker arm actuator system, performance or stuck off
Check the engine oil to ensure it's clean and the viscosity
Restart the vehicle and retest to see if the error returns

02979 Fault Code For Volkswagen Vehicles

The fault code 02979 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 02979 code, common causes, symptoms, and possible repair solutions to help you diagnose your Volkswagen efficiently and accurately.

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