I need to break out my Haynes repair manual tonight and go through where the PCM gets power… maybe when I pulled the alarm I did something?7.94 volts would cause a lot of problems. Yea start simple and check your ground/power. I know my holley efi HAS to be wired directly to the battery. I had it connected under the hood at a large fusebox with the battery in the back but they said it had to have its own wire to the battery. I was having issues with starting at that time and it seemed to fix it along with another fix.