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  1. Codes P1148 and P1276 on my 2005 Nissan Titan

    Titan Problems & Dealer Service
    Hi, I'm OBDII getting the following codes on my 2005 Nissan Titan: P1148 Closed Loop, Bank 1 P1276 Air/Fuel Ratio Sensor 1 Can anyone tell me what I should check - and where the possibly bad components are located? I did a bit of research and it looks like I can access the O2 sensors and...