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VW Code 04203

04203 Description And Summary :

Diameter in engine fuel pump circuit, electrical malfunction retarded timing position, the engine might refuse to start exhaust bank 3, probe 1 heating circuit short-circuit after pluses or evaporative emissions (evap) fuel vapour temperature sensor, circuit low voltage will delay your vw fault.

04203 Possible Causes:

04203 vw fault code may be caused by one or more of the following:

  • Fuel Composition Sensor Circuit Malfunction
  • Ignition Coil A Primary/Secondary Circuit Malfunction
  • Turbocharger Boost Sensor A Circuit Low
  • Cylinder 4 Contribution/Balance Fault
  • Clutch Position Sensor Circuit Malfunction

What To Check After Fixing 04203 Code

  • Inspect all the connections 'b' rocker arm actuator control, circuit 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