trucold

Hope you guys can help, got the "bank one below threshold" blues, truck runs pretty good but I get this trouble code once a week, and its annoying going to Auto Zone and getting it checked. What is causing this and how can I fix this. Keep in mind my crossover pipe for my headers is fabricated. Do I need to worry about other problems from this? Thanks for the help.

Brian R.

Exactly what code is displayed? There are alot with that description.

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trucold

Its's 0420