Truck won't start

[pnwradar]

My Blue Chip pump cover arrived yesterday, just as I was finishing up the oil/filter change, so I decided to put it on and hook up the Edge Comp pump wire. Now the truck won't start. I replaced the fuel pump and banjo bolts last week, since fuel pressure was getting really low at WOT -- afterwards pressure was great at idle and WOT. Pressure is still showing good.

I had to unplug the TPS wiring connector to move the TPS unit out of the way, and the Blue Chip directions say to check for 12vdc between the wire posts. When I turned the truck to ON to check for 12vdc, I forgot to connect the TPS back up. When I put the TPS back on, I made sure to hook up the connector right, though.

The truck wouldn't start, and the CheckEngine light was lit. I read the codes with the on-off key trick, and it showed P0122 (TPS low voltage) and P1693 (mystery code). I unplugged the batteries for a half-hour, and now I only have the P1693 code.

I let it sit overnight, and it still wouldn't start this morning. I unplugged the Edge Comp and removed the pump cover, still no joy. I loosened the #1 injector line nut, and when I crank it looks like diesel comes out (shoved a clean towel in there, can't see it from the cab). Fuel pressure comes up good, and it cranks nice and hard, just won't catch.

Anyone have any ideas? Hope I didn't fry the injector pump already -- I didn't even get to play with 5/5, yet.

-jon-