LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Honda >> 2023 >> Pilot EX-L, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTC Diagnostics (P0201 - P0A11) >> Troubleshooting >> DTC P0420, P0430 >> Notes
April 5, 2026: LEMON Manuals is launched! Read the announcement.

DTC P0420, P0430: Notes

DTC P0420  : Rear Bank Catalyst System Efficiency Below Threshold (Bank 1) DTC P0430  : Front Bank Catalyst System Efficiency Below Threshold (Bank 2)

How to use this manual .

NOTICE:  

Before you troubleshoot, review the How to Troubleshoot .

NOTE:  Poor quality fuel may cause this DTC.

scientia non olet · About LEMON Manuals