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i have a 2004 f250 and i was wondering if anyone knows how long a ficm and the rest of the computers will hold there memory or if this even a problem i've had the batteries unhooked for a month and a half while i've been working on my pickup. will i need to take it to the dealership before i try to fire it up?
You should be fine. It will have lost stored data like DTC's and learned data but will re-learn after you get it running. All the software you need to run should still be there.
