After changing both crankshafts top and bottom does it need to be reprogrammed?

Hello, no - engine repairs do not require "reprogramming" after completion. I'd be more concerned with the quality of repair work. Do you mean camshafts? I can't imagine you changed the crankshaft. Did you do the work or a trained, certified technician? I'm concerned about the engine timing or the proper installation of the parts. https://repairpal.com/auto-repair-near-me Click the link or call us at 877-913-1554. We'll gladly find you a certified RepairPal shop in your area.