I have a 2006 F150. It has been running rough for awhile. I drive it seldom and have tried to run the problem down for awhile. I even tried a new computer as it felt like it had a dead miss and I thought I had a couple dead injector drives but no avail. Now I am finding that the PCM Power Relay, I believe R203, has both power wires hot at all times and no ground to the relay side to engage. Interesting how it was even able to run period but I am looking for either a way to find and Identify all the connectors on the box to try and determine if something is missing. Still not sure why I have hot on both leads at all times. One should be Ignition. Any help out there on diagrams or any thoughts??