2002 Liberty Cranks but Won't Start

[cedave]

My 2002 Liberty 2wd 3.7L engine won't start. Switched around relays for ASD, Fuel Pump (I can hear it prime when key is turned on), checked fuel pressure at fuel rails and I'm getting 50 PSI, checked fuses, changed cam position sensor, changed crank position sensor, still won't start.
My wife drove it to the store Thursday and said a couple times it would crank over way more than normal and would eventually start. Yesterday morning she tried starting it with no such luck. When I got home yesterday it wouldn't start for me either so I started checking fuses and swapping relays (fuel pump) and it started. I thought I was good to go but when I shut the hood the vehicle died! WTF !!!!! Now I can't get it to start at all.
After that, as I previously mentioned, I've changed both CPS sensors and swapped relays; No Luck!!!!
Please, some one help me!!!!!!!!

 

[uss2defiant]

i suppose that leaves the starter?

How's your battery?

 

[cedave]

As the Title states, the vehicle cranks but won't start.
Absolutely nothing wrong with the starter and a relatively new battery!

 

[cedave]

Just checked and I have spark. As I mentioned before, with the key in the on position I'm getting 50 PSI at the fuel rails.
I'm thinking I have a shorted wire somewhere or the PCM may not be functioning properly. I'm really frustrated with this thing.

 

[ltd02]

So no fuel at the injectors. Need to check to see if they are "active". Did you use mopar sensors and did you swap back the original cam and crank position sensors when you found that wasn't it? I'm assuming you've checked and have no codes? Might want to disconnect the PCM connector, clean and reconnect.

 

[cedave]

Problem Solved!!!!!!

I forgot to mention that I also checked for codes and got a P1389 dtc.
So I sourced a wiring diagram and the Pinout charts online and started my diagnoses. Turns out that pin 12 of the gray plug is linked to the ASD relay. However, after tracing the wires I found that it links to the ASD relay after going through the 15 amp injector fuse. So I pulled the injector fuse and noticed it was kinda loose in the holder. So I just stuck it back in and 'Voila'!!! It started.
I took the fuse back out and put slight double bends in each of the blades and it pushed back in nice and firm, so it should be good to go from here on out.
Thanks for the responses and hopefully this experience can help others in their trouble shooting adventures.