I've read the other threads, but I want to get some personalized feedback before shelling out money on something I don't need.

Jeep GCL, died leaving work, no sputters, no previous stalls, no warning whatsoever. Been through all the simple stuff, fuel pump is coming on, no tester, but there is fuel at the rail after relieving all pressure and then cycling fuel pump with the key (every time). Checked every plug, wire, ohmed primary and secondaries on the coil, all good.
Then got to the fun stuff of putting the coil wire and every plug wire on a screwdriver and holding to ground, no spark anywhere. I cannot scope it, do not have any "legit" test equipment aside from my DMM and some wiring diagrams in haynes.
That bring me to my problem, I've got 5v(ref) coming from the pcm at the CKP connector and 2.1v on the other end of the connector (can't recall which voltage was the wt/blk and which was the rd/grn)

I don't have an analog meter to use to test the CKP.

Should I lean more towards replacing the PCM or CKP?

Thanks for those with the patience to still be reading this, and more to those who actually try to figure it out!

if the coils not firing then i go ckp sensor. if the coil is firing check cap and rotor button. sometimes you can "tap" the ckp sensor and it will work temporarily. i always go ckp before pcm.

CPS (crank position sensor)

A buddy of mine had the same (very simular) problem although different year. I'm not an expert but the problem is very simular. CPS if this year has one you might check it out. That's my two cents and may not be worth that.

CPS (crank position sensor)

A buddy of mine had the same (very simular) problem although different year. I'm not an expert but the problem is very simular. CPS if this year has one you might check it out. That's my two cents and may not be worth that.

Agreed, at first glance. I'd bet you have the 4.0 liter with more than 100K miles.