1990 Lumina 3.1 Drove home parked car all fine 10 hrs. later car would turn over but would not fire, could hear fuel pump when key was on. I' wondering , ignition module ?

Not enough fuel pressure to injectors,replace with a new pump and filter.

You may have purchased bad gas! Water in gas? Try additives to dry gas and now check fuel lines too.

check fuel pressure, check filters , bad fuel or water in fuel is a common problem with diesel fuel.start simple, turn key to on ,,can u hear fuel pump. remove filter check condition see if water in filter.they have 2 or more filters. prime pump per manual try again.

simply check the battery cables.
I had a 93 s-10.Even a lttle bit loose will cause it
not to start

it mightbe your fuelpump,fisrt thing need to do checking the fuelpump is put your key to on(not start)
listen to the buzzing sound from the pump. if you dont hear nothing,then your fuel pump is gone

When you tur the key forward do you hear the fuel pump running? You should hear a low hum for about 20 seconds near the gas tank and then it stops. If you hear this your pump is good. If it keeps running or you can't hear it at all it's bad or the main fuel pump fuse is blown.

Sounds like you have a bad glow plug relay that could cause a power spike and drain your battery,it could also take away power to the fuel pump causing the loss of power.Hope this helps you out some!!

When it stops, does it have spark? (crank sensor)

timing belt broke most likley

There is probably a fuel relay somewhere in that circuit to, that may be faulty. Check your front drivers side inner fender by shock tower for 3 relays. It should be the middle one.