my truck is running a lil funny. when im driving and staying at a consistent speed it surges in and out. could it be a fuel filter probably? and also when i shift into reverse it sometimes shuts off or the idle falls really low and wants to shut off. any ideas or imput?
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Same thing was happening to mine and found out I had some bad injectors and a bad board. Part number F4Tf-12A650-YA Once I locate one and git the bugger installed I will let you know if it fixed the problem!

Semper Fi