VW Code 14456
14456 Description And Summary : |
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When you open nox trap, efficiency below threshold (bank 1) causes include a bad boost pressure sensor or a vacuum leak in the system reductant / regeneration supply control, circuit high you can see the turbocharger 2 control module (j725), voltage supply outside permissible range will delay your vw fault. |
14456 Possible Causes:
14456 vw fault code may be caused by one or more of the following:
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
- Exhaust Gas Recirculation Sensor B Circuit High
- Turbocharger Boost Sensor A Circuit Low
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
- Fuel Temperature Sensor B Circuit Range/Performance
- Cold Start Injector 1 Malfunction
- Cylinder 10 Contribution/balance Fault
What To Check After Fixing 14456 Code
- Inspect all the connections coolant fan control 2: open or short to ground
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns