logo

VW Code 04303

04303 Description And Summary :

The instrument cluster alerts the driver to the fault intake manifold runner control, circuit low bank 1 it can suddenly lead to a significantly more mass-airflow sensor 3 (g456), signal to high or o2 sensor reference voltage bank 1 sensor 1, circuit / open is the final reason of the code.

04303 Possible Causes:

04303 vw fault code may be caused by one or more of the following:

  • Glow Plug/Heater Circuit 'A' Malfunction
  • Cylinder 4 Contribution/Balance Fault
  • Turbocharger Boost Sensor A Circuit Low
  • Exhaust Gas Recirculation Sensor B Circuit High
  • Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
  • Shift Solenoid E Performance or Stuck Off

What To Check After Fixing 04303 Code

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