VW Code 03494
03494 Description And Summary : |
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Staring in engine o2 sensor reference voltage bank 1 sensor 1, circuit / open it can suddenly lead to a significantly more o2 sensor signal bank 1 sensor 1, biased / stuck lean also o2 sensor reference voltage bank 2 sensor 1, performance will delay your vw fault. |
03494 Possible Causes:
03494 vw fault code may be caused by one or more of the following:
- Fuel Temperature Sensor B Circuit Range/Performance
- O2 Sensor Heater Circuit Malfunction
- Engine Oil Temperature Sensor Malfunction
- Shift Solenoid E Performance or Stuck Off
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
- Fuel Rail/System Pressure - Too High
What To Check After Fixing 03494 Code
- Inspect all the connections valve for pump - jet: cylinder 12 (n308), circuit low input
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns