Hello again gentlemen. Today I am working on a customer's 89 k2500. To spare no detail, it's a Cheyenne equipped with a 350 and a th400. Anyhow, he brought it to me last week with a crank no start problem. It had been sitting a while so the battery was dead and wouldn't hold a charge so I replaced it. It fired right up on the first try, I drove it, ran well. Parked it in the shop to work on the other things that needed done (tuneup, fuel and air filters, tank replacement). Didn't get to it until today. So I go to start it and it fires up, moved it etc. Shut it off and left it sit a couple hours. Then it wouldn't start. Injectors aren't spraying, no spark. Parts I've tested or replaced include: new distributor asy(figured the problem was either the pickup or icm), 3 different icms (even tried the one from my personal truck), new coil, coil wire, ecm (again, from my truck). I have 12.14 volts with key on at the pink coil wire. Triple checked my distributor and coil connections. I have 11 psi fuel pressure, and replaced fuel filter. I've got a 12.14 constant voltage with key on to the injectors, but obviously no ground to the noid light when cranking. 12.14 does seem low at the coil, as the battery shows 12.36, not sure why it's that low. Could that be the problem? I can't think of anything else to check besides connections. Please let me know what you guys think, and if im missing anything. I'd really like to get this customers truck back on the road. Thanks!!