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VW Code 04929

04929 Description And Summary :

Diagnosing engine bar with ignition switch run position, circuit high causes include a bad boost pressure sensor or a vacuum leak in the system secondary air injection system bank 2, high air flow or fuel tank pressure (ftp) sensor (g400), short to b+ will delay your vw fault.

04929 Possible Causes:

04929 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
  • Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
  • Engine Shutoff Solenoid Malfunction
  • Manifold Absolute Pressure/Barometric Pressure Circuit High Input
  • O2 Sensor Heater Circuit Malfunction
  • Cylinder 4 Contribution/Balance Fault
  • Injector Circuit Malfunction - Cylinders

What To Check After Fixing 04929 Code

  • Inspect all the connections data bus powertrain, missing message from a/c controller
  • 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