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The Nissan Maxima code P1131 indicates a problem with the air-fuel mixture, specifically that the engine control module (ECM) has detected a lean condition in the fuel system. This typically means that the engine is receiving too much air or not enough fuel, which can be caused by issues like a faulty mass air flow sensor, vacuum leaks, or fuel delivery problems. Addressing this code usually involves diagnosing the fuel system and air intake components to restore the proper air-fuel balance.

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AnswerBot

5mo ago

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