edge evo probs

[westdouglas]

here is what ive done ,checked all the grounds on the truck ,took the pcm/ecm out cleaned the contacts and re-installed, truck still not responding to evo. the numbers that were on the pcm are xu7f-12a650-ab or ba it is a reman with a dcp-422. there are sopme other numbers on it as well mn4---00p9zv.any body know anything about these numbers and what do these numbers cross to? with 200k mi is it smart to replace pcm?