Honda Pilot check engine light issue with OBDII code P0455 on Honda Pilot

Submitted by Vehicle Owner · Jun 23, 2025
Published by RepairPal

Problem overview

Some Honda Pilot owners report experiencing issues related to the check engine light illuminating with the OBD-II code P0455, indicating a problem with the Evaporative Emission (EVAP) Control System. Common symptoms include a noticeable fuel smell both inside and outside the vehicle, suggesting a significant leak in the EVAP system. The P0455 code specifically points to a large leak or no flow detected in the EVAP system, which can lead to gasoline vapors escaping into the atmosphere. While this issue may not immediately affect the driveability of the Honda Pilot, it is crucial for owners to address it promptly to prevent environmental harm and ensure the proper functioning of their vehicle. It is advisable to have the EVAP system inspected and repaired if these symptoms are present.

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