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  1. Hard start, rough idle, then fine after up to temp!

    6.0 Motor problems
    I have a 2006 f350 6.0. It has a rebuilt ficm, dummy plugs I had a edge evolution on it and took it of an sold it two days ago( sct is on its way). When I took it off and sold the chip, I went to start my truck and it started prefect then started to idle badly. Sounded like a bad lope tune...