I had similar problem, it would fire up on cold start injector but wouldn't run,
No fuel from the 4 injectors, but there was lots of pressure and fuel would spew from the head if the bango bolts were slackened,
Turned out the Pump was drawing air caused by low fuel level, - make sure u got at least 2 jerry cans in the tank -
sometimes it's the simple things,
good luck

chris