Rev600

So I have a 92 f150 with the 5.0 efi.
Was running good then suddenly wouldn't start. It sat for a week then hesitantly started after lots of cranking. It was spuddering when I gave it any gas but I figured it had been sitting a week so I took off. It broke down 2 miles down the road and wouldn't start.
Probably wasn't a good idea but I haven't been able to run codes and threw a few parts at it. (TPS sensor, AIV, distributor cap, wires, plugs, 02 sensor) tested spark at plugs and seemed good. Can hear fuel pump prime on key on, can't test fuel pressure but fuel sprays out when I release valve on fuel rail. Tried starting on ether just for kicks and still nothing.
Any ideas? Any input is appreciated!

Matthew Burr

check for a stuck IAC

if it's stuck closed, the motor wont start; at best sputter a bit

if you got it running and then it stuck engine would die as soon as you let it come back to idle/take your foot off the gas

you could pull it off and see if it moves inside, or tap real good with a wrench and see if it runs

Rev600

I put AIV by mistake. It has a new AIC valve

Rev600

Got it running! Ignition coil caused the spark to be weak enough to not ignite the fuel. Stabbed a new one in this morning and it fired right up