Q: engine light Codes on 2001 Lexus ES300

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Thank you!!!!! I went to autozone and I have 3 codes - po446, po171, po174 can you help?
(1) Answer
446 is an evap code that could be a lot of things.
the 171, 174 are lean codes which could range from vacuum leaks to a fuel pump or a mass air flow sensor.

you need a shop to do a real compete diag to pin point the issue and give you a bid.

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