Replace Oxygen Sensor When Servicing EGR System on Toyota Land Cruiser

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

Problem overview

Over the time the exhaust gas recirculation (EGR) system may become plugged with debris, the oxygen sensor may also be getting slow or 'lazy' around this time. 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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