A few months ago I started this thread on this site but had to leave for school and couldn't work on the car. From this point, I have tested a few things and found at least one problem. Previously it was suggested to check the fuel pressure and after the engine dies it is still at 32 psi. Also in the previous post I mentioned the first time the car died like this was on the road after I clutched in, upon looking around the clutch pedal I found this red wire in the ECU loom that was worn away by the pedal. I haven't traced it yet so this could be part of the problem.
Just to save a click here is the original problem post from me : I have a 1978 280z that I've recently put back together after rebuilding the engine, rust work, and paint. I've gotten the car to the point that it has run three times for various lengths of time. The second time running, I timed it and got it as close as possible but ran out of adjustment on the distributor. When it ran this time I had it on for around 25 minutes and with the initial break-in done decided to go for a ride. I made it 1/2 a mile down the road before it died grabbing fourth and wouldn't run afterward. After an emergency tow home, it would briefly fire up for maybe one second and then die. The next afternoon I tested to see if I had fuel flowing to the rail (I haven't tested pressure) and there is definitely fuel flowing while cranking. Knowing this, I tried running it again and it fired right up and idled for about a minute until I pushed the clutch in to back out of the garage where it died and would not restart. At this point, I have done lots of troubleshooting to get it to this point and any help would be greatly appreciated.