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ecm issue
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  1. Second Generation Duramax Electronics/Tuners
    my 04.5 has been throwing this code p0601 for a week now, after researching this code it appears my ecm may be in need of repair. some posts indicate that a ecm "reflash" fixes the code. I have checked all harnesses for rub thru and shorts, verified all grounds and cleaned and checked all pins...
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