Replace oxygen sensor when cleaning EGR system on Toyota Avalon

Submitted by Vehicle Owner · May 29, 2025
Published by RepairPal

Problem overview

By the time the EGR system is plugged, the Oxygen Sensor is getting slow or 'lazy'. When servicing or cleaning the EGR system, it is a good idea to replace the Oxygen sensor because it works in tandem with the EGR system.

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