So after getting the truck to run and driving it, the bitch misfires horribly, hardly has power, and has 47 unran codes and 2 active ones. I am gonna write down all the codes and post them up tomorrow for some input and do a few tests on it. Is it possible that when removing the cats and not having them tuned out yet would cause the misfire and lack of power?

 

i had the same issue .. i found a leak in me exhaust and i fixed it so now no misfires codes show up again .