I recently replaced my 3.5 with another 3.5 it went in just fine. I checked all the grounds, good battery but now I get a no crank no start, .y obd 11 won't connect, the shiftlock won't release and the instruments cluster is throwing all kinds of codes, abs low fuel brakes and the security light is on. Does the ecu need to be reprogrammed. Any help would be greatly appreciated. Storm