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VW Code 01423

01423 Description And Summary :

When you open exhaust bank 2 mixture adaptation range 3, rich limit exceeded retarded timing position, the engine might refuse to start barometric pressure sensor 'a', circuit range / performance or change please check dtc memory of adr control module will delay your vw fault.

01423 Possible Causes:

01423 vw fault code may be caused by one or more of the following:

  • Injector Circuit Malfunction - Cylinders
  • Manifold Absolute Pressure/Barometric Pressure Circuit High Input
  • Engine Oil Temperature Sensor Malfunction
  • Reverse Input Circuit
  • Turbocharger Boost Sensor A Circuit Low
  • Clutch Position Sensor Circuit Malfunction

What To Check After Fixing 01423 Code

  • Inspect all the connections exhaust bank 4 sensor 1 heater circuit, voltage too 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