Jeep cranks but doesn't start.

[Swampwalker3]

Back story: I pulled the Aw4 from the 4.0 to do a rear main. (different story)
After putting it all together, the jeep wouldn't fire. I noticed I had removed a CPS bolt, so I got a new one. Still no dice.

I threw some starting fluid down the intake to see if she'll even try but nothing. Just spins.

Before the rear main change, the jeep ran fine. Only thing I can think of is I magically destroyed the cps somehow.

However, what is this? I can't recall if this was a wire I had left unhooked when I swapped the drivetrain or did when I used the straps to lift the trans somehow.

Sorry about the quality..