Well, I went through all of the wiring today as shown in the tech article (870-165 maf ecm swap). Everything is hooked up right! some of the solder connections are a little narly but they should do the job. Still no fuel pump prime. So here are my thoughts. Earlier I DID have the Maf burn off relay and MAF power relay wired totally wrong (dont ask) Could wiring those relays wrong have fried them? Or even worse... fried two 165 ecms? Secondly, asuming that the relays are toast and nothing else, could two bad MAF relays prevent my fuel pump from priming?