So like my earlier post stated, I thought my codes were perfect when I ran them, but found out that my OBDII fuse went out, so when I ran the codes with the new fuse it stated that nothing was wrong. Bummer, now it is like a guessing game. Anywho my 2000 PSD is cranking very hard and has more than enough juice to turn over, but won't. I have two new batteries. I live in the Rockies so it is very cold. Fuel system was a go as I took off the fuel pump and got fuel from both ends. Replaced the fuel filter too. I run Diesel Klean in my system and there is zero gelling. When I try to turn her over a light white smoke comes out of my tail pipe. Could it be the glow plug relay deal that is located by my fuel filter housing? PLEASE HELP!