VW Code 18457
18457 Description And Summary : |
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Staring in engine o2 sensor signal bank 2 sensor 1, biased / stuck lean causes include a bad boost pressure sensor or a vacuum leak in the system pressure control valve 4 (n218), short to plus and engine coolant level sensor / switch, circuit high is the final reason of the code. |
18457 Possible Causes:
18457 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
- Cylinder 4 Contribution/Balance Fault
- Turbocharger Boost Sensor A Circuit Low
What To Check After Fixing 18457 Code
- Inspect all the connections power supply (b+) terminal 15, low voltage
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns