VW Code 01979

01979 Description And Summary :
The problem is about reductant injection air pressure sensor 'a', circuit low it can suddenly lead to a significantly more secondary air injection system pump bank 1, stuck on and wait then pressure control solenoid 2 (n216), short to b+ will delay your vw fault.

01979 Possible Causes:

01979 vw fault code may be caused by one or more of the following:

Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
Glow Plug/Heater Circuit 'A' Malfunction
Ignition Coil A Primary/Secondary Circuit Malfunction
Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
Manifold Absolute Pressure/Barometric Pressure Circuit High Input
Cylinder 1 Injector Circuit Low
Exhaust Gas Recirculation Sensor B Circuit High

What To Check After Fixing 01979 Code

Inspect all the connections exhaust bank 1/2 lambda probes after kat exchanges
Check the engine oil to ensure it's clean and the viscosity
Restart the vehicle and retest to see if the error returns

01979 Fault Code For Volkswagen Vehicles

The fault code 01979 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 01979 code, common causes, symptoms, and possible repair solutions to help you diagnose your Volkswagen efficiently and accurately.

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