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What is the cause of po 300 code on my infiniti qx56 2007 model

Posted / edited by AnonymousUser on : 15-01-2018

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What is the cause of po 300 code on my infiniti qx56 2007 model


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I have an 2003 Navigator. My check engine light is on. The code from Autozone gave me P1131. Which says Lack of Bank 1 O2 transitions-lean. ECM detected Bank 1 O2 at its lean limit. Probable cause: 1. Misfire on Bank 1 2. Vacuum Leak on Bank 1 3. Fuel Injector problem Bank 1 What should I do? I have 89,000 miles.


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