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The diagnostic code P2189 for a Mazda MPV indicates a "System Too Lean at Idle" condition, meaning that the engine's air-fuel mixture is too lean (not enough fuel) when the vehicle is idling. This can be caused by a variety of issues such as a vacuum leak, faulty fuel injectors, or a malfunctioning mass air flow sensor. Addressing this issue is crucial to ensure proper engine performance and prevent potential damage. Diagnostic testing and inspection are recommended to identify the specific cause.

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3mo ago

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