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Q: failures on 2000 Mazda B2500

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
i have a pick up mazda b2500 2000, when start de engine it failures, it shakes, but in a few minuts run very well. failures every time when i run it
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You have an engine performance issue that requires some diagnosis. Everything I suggest here will be more or less guess work - having the proper qualified technician inspecting your truck with a high grade diagnostic tool - that is what you really need.

Start and stall, shaking then running fine after it warms up -- that's what I am taking from your post -- I would think of a possible sticking idle control valve, vacuum leak, even a MAF sensor issue or an EGR valve or EGR flow issue.

If it did not clear up after a short bit, I would start looking at fuel pressure and tune up items as well. Since I have no clue of the truck's history, I'm left to recommend nothing further unless a diagnosis is performed. Good luck!
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