Question about 2003 Toyota Camry

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Have po442 and po456. What does this mean? check engine light is on.

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Hi, both codes mean: Evaporative Emission Control System Leak Detected (very small leak).
This may be a very tough issue to diagnose or it may be a simple problem like a loose gas cap. Check the gas cap, and visually check for any loose hoses under the hood and under the car.
Take care

Posted on Aug 02, 2010

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