Checked all connections and grounds today, including the pcm harness to pcm. All connections are good and snug. All grounds are checked and wire wheeled clean then covered in di-grease. Truck ran ok at idle today for about 10 minutes at opreating temp, died once, started back up, ran for another 10. I goosed the throttle to about 4000 and let it drop. The rpm dropped to about 550 before it caught itself, came back up to 800, then died. Started back up, ran for 5 mins fine, goosed it again, same deal dropped to 550 before it caught itself, jumped to 800 then died. I will need to put a fuel pressure gauge on it during this to see if it drops off or something because it seems likely that is the cause. However, i have 60 pounds at idle which is right where it should be, and it seems odd that it would, but who knows. I'm running out of ideas and starting to hate this truck. It's almost walleye season and my boat doesn't pull itself!