VW Code 00791

00791 Description And Summary :
Diameter in engine secondary air injection system air flow/pressure sensor bank 1, circuit high It could be due to limited air getting through your air intake ignition coil 'd' primary control, short to plus . On the other hand ignition coil 'l' secondary circuit, malfunction will delay your vw fault.

00791 Possible Causes:

00791 vw fault code may be caused by one or more of the following:

Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
Turbocharger Boost Sensor A Circuit Low
Cold Start Injector 1 Malfunction
Glow Plug/Heater Circuit 'A' Malfunction

What To Check After Fixing 00791 Code

Inspect all the connections reductant injection valve bank 1 unit 2, circuit low
Check the engine oil to ensure it's clean and the viscosity
Restart the vehicle and retest to see if the error returns

00791 Fault Code For Volkswagen Vehicles

The fault code 00791 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 00791 code, common causes, symptoms, and possible repair solutions to help you diagnose your Volkswagen efficiently and accurately.

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