LEMON Manuals: Even more car manuals for everyone
Home >> Acura >> 2021 >> TLX Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTC Diagnostics (3 Of 6) >> Troubleshooting >> DTC Troubleshooting: P0420(3.0L Engine) >> Notes

DTC Troubleshooting: P0420(3.0L Engine): Notes

DTC P0420  : Catalyst System Efficiency Below Threshold

How to use this manual .

NOTICE: 

Before you troubleshoot, review the How to Troubleshoot - Refer to: How to Troubleshoot the Fuel and Emissions Systems(2.0L Engine) or How to Troubleshoot the Fuel and Emissions Systems(3.0L Engine) .

NOTE: Poor quality fuel may cause this DTC.
scientia non olet · About LEMON Manuals