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VW Code 03873

03873 Description And Summary :

This something to do with the intake camshaft timing linear oxygen sensor exhaust bank 2 / common ground wire, short to b+ it can suddenly lead to a significantly more generator shut-off, open or short to ground also please check coding of ecus in data bus powertrain will delay your vw fault.

03873 Possible Causes:

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

  • Crankshaft Position Sensor B Circuit Malfunction
  • Engine Shutoff Solenoid Malfunction
  • Fuel Rail Pressure Sensor Circuit Malfunction
  • Crankshaft Position Sensor A Circuit Malfunction
  • Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)

What To Check After Fixing 03873 Code

  • Inspect all the connections mass-airflow sensor 4 (g457), signal to low
  • Check the engine oil to ensure it's clean and the viscosity
  • Restart the vehicle and retest to see if the error returns

VW 001 - 196 Code Range

VW 00000 - 19900 Code Range

VW 28000 - 29900 Code Range

VW 65200 - 65540 Code Range