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What is your question?
What do the above listed codes refer to?

1 Reply
P1000 indicates that all systems have not completed a drive cycle test for pass or fail. P0442 is an evaporative emissions system concern. P0171 is a bank one lean fuel trim code. P1000 can be ignored; the other two concerns are separate and need specific individual testing performed to resolve.
Thank you for your quick response. Now I have an idea of what I am dealing with, before I take the truck to a mechanic.