1990 suncrest sunbus

I have a 1990 suncrest sunbus with a John Deere chassis and 460 engine. We drove  it to the gas station and came back out. It ran for like a sec and died. It wouldn't start back up. It has no fuel, no spark and dash lights. But it cranks.We check the fuel pump but jumping it to the battery it pumps and works, we jumped the ignition coil in the distributor and it didn't start. We also thought that it could of been the emergency fuel shut off so we just bypassed it. What else could it be. The only fuse box that we can locate is under the dash. When trying to look it up online we don't get much help. When we do.find something is always about a Ford chassis or Chevy chassis.