VW Code 09873

09873 Description And Summary :
When you open exhaust bank 4 mixture adaptation range 3, lean limit not reached It could be due to limited air getting through your air intake ignition coil 'c' primary control, short to plus you can see the ecm/pcm power input, signal intermittent is the final reason of the code.

09873 Possible Causes:

09873 vw fault code may be caused by one or more of the following:

Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
Crankshaft Position Sensor B Circuit Malfunction
Turbocharger Boost Sensor A Circuit Low
Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
Crankshaft Position Sensor A Circuit Malfunction

What To Check After Fixing 09873 Code

Inspect all the connections turbocharger speed sensor, circuit range / performance
Check the engine oil to ensure it's clean and the viscosity
Restart the vehicle and retest to see if the error returns

09873 Fault Code For Volkswagen Vehicles

The fault code 09873 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 09873 code, common causes, symptoms, and possible repair solutions to help you diagnose your Volkswagen efficiently and accurately.

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