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Re: P0171 DTC - sys too lean (Bank 1)
chances are its the very common intake gasket issue or cracked intake. dorman makes a replacement intake the fixes the issue. did it start out as a slight quiver now and then in the idle and get worse from there?? if so chances are you need an intake and gaskets. Your well overdue for replacing the intake at that mileage they rarely ever go that long.
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Owner of North Point Car Care in Dundalk Md. We specialize in custom exhaust on both modern and classic vehicles. We are a full service auto shop from classics to modern vehicles. Feel free to contact me with questions. I will give a 10% discount to any board member.
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