Code Po442 Chevy Fixed

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Have a 04 chevy avalanche with a check eng code of po442. have checked

Codes po440 and po446: emissions. i have po440 and po 446 codes.Finally passed smog!!! code p0455 fixed!!! Leak diagnose vapor fuel airboxCode: po442.

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Codes Po440 and Po446: Emissions. I Have Po440 and Po 446 Codes.

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Code: PO442 - Lexus IS Forum

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Code: PO442 | Lexus IS Forum

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How to Fix CHEVROLET P0452 Engine Code in 3 Minutes [2 DIY Methods

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Have a 04 chevy avalanche with a check eng code of po442. have checked