5.9 Magnum help needed

Yopu need to run a ODB11 on it.That should tell you what it is or atleast pretty close.If the timing chain broke it wouldn't fire.It's probably the fuel pump but it could be a fuse or sensor going to the pump also.
I've been lurking on the old car sites too much lol.
Turn the key to on(not start)and off,on off then back to on.
Count the check engine light flashes
It will flash a set number of times then flash again for every code stored.
When it is done it will flash 5 times then 5 more times which is code 55 which is the end code.
If you get the codes post them and we can help you decode them.So again if it flashes 3 times then palses and flashes 4 times then palses then flashes 2 times then palses then flashes 4 times you will have codes 34 and 24.You see how that is working,it's alittle difficult to explain in text.