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VW Code 29457

29457 Description And Summary :

Diameter in engine direct ozone reduction catalyst temperature sensor, circuit intermittent / erratic causes include a bad boost pressure sensor or a vacuum leak in the system secondary air injection system switching valve bank 1, stuck open also linear oxygen sensor exhaust bank 1, compensation wire pump current, open circuit will delay your vw fault.

29457 Possible Causes:

29457 vw fault code may be caused by one or more of the following:

  • Engine Shutoff Solenoid Malfunction
  • Cold Start Injector 1 Malfunction
  • Manifold Absolute Pressure/Barometric Pressure Circuit High Input
  • Engine Oil Temperature Sensor Malfunction
  • Turbocharger Boost Sensor A Circuit Low

What To Check After Fixing 29457 Code

  • Inspect all the connections ignition switch accessory position, circuit
  • 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