What could break or get clogged if i don't change the Bank 1 sensor 1 O2 sensor? The toyota dealer said that it would be fine if I wait all it will do is get worst gas mileage.
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Toyota extended their warranty on 02 sensors to 8 years or 80K miles so i would go back and get the Service Writer to get rid of his amnesia and fix your sensors if you are within those parameters!![]()