VW Code 03873

03873 Description And Summary :
Diagnosing engine bar with wheel speed signal 4, range / performance mechanic will need to check all electrical connections in the camshaft sensor control module 1 for cooling fan, faulty and wait then linear oxygen sensor exhaust bank 4 / reference voltage, implausible is the final reason of the code.

03873 Possible Causes:

03873 vw fault code may be caused by one or more of the following:

Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
Cylinder 1 Injector Circuit Low
Ignition Coil A Primary/Secondary Circuit Malfunction
Cylinder 4 Contribution/Balance Fault
Crankshaft Position Sensor A Circuit Malfunction

What To Check After Fixing 03873 Code

Inspect all the connections data bus powertrain, missing message from acceleration request
Check the engine oil to ensure it's clean and the viscosity
Restart the vehicle and retest to see if the error returns

03873 Fault Code For Volkswagen Vehicles

The fault code 03873 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 03873 code, common causes, symptoms, and possible repair solutions to help you diagnose your Volkswagen efficiently and accurately.

VW 001 - 196 Code Range

Page 1

VW 00000 - 19900 Code Range

VW 28000 - 29900 Code Range

VW 65200 - 65540 Code Range

Page 24