Lexus IS250 IS220d GSE20 ALE20 4GR-FSE EMISSION CONTROLAIR FUEL RATIO SENSOR (for Sensor 1) - COMPONENTS 1 / 32 / 33 / 3 LEXUS IS250, IS220d / GSE20 ALE20 4GR-FSE EMISSION CONTROL Lexus IS250 IS220d GSE20 ALE20