Summary
This service bulletin addresses an issue with the Evaporative Emission Control (EVAP) system in various INFINITI models from 2011 to 2019.
The problem is caused by a leak at the vent control valve O-ring, which can trigger the Malfunction Indicator Lamp (MIL) and DTC P0456.
Action
To repair, replace the vent control valve O-ring seal, following the service procedure outlined in the bulletin.
Important notes:
- Do not replace the entire vent control valve.
- Ensure the surfaces that the O-ring comes into contact with are clean.
- Verify the repair by checking for leaks with a “smoke” leak detection machine or CONSULT-III plus (C-III plus).
Manual:
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