My info showed this firing order for the 3.1, did you visually check for spark at the plugs? You can pull a spark plug wire, use known good plug or spark tester in the boot, ground metal part of plug/tester to metal part of engine. engine cranking, watch for spark. I wouldn't think all your coils would fail at the same time? Any applicable codes?
I got two or three databases I use, they all have mistakes. Maybe this is better.