PCM related? Tried to troubleshoot a sound, car won't fire off now.
 

So I've been having this problem with what sounds like a lifter, even though I have replaced all of the lifters.

It is a 94 Z28, but I am running the 24x setup.

I started going cylinder by cylinder yesterday, unplugging a coil and listening to see if the sound changed. I did all of the the driver side no problem, same deal for cylinders 8 and 6.

Unplugged cylinder 4 and almost thought I heard a change, so I went to plug it back in. I had trouble with it a little bit, car then stalled.

Now the car will crank but not fire off? I have no trouble codes.

Could it stalling out have screwed up the crank position sensor reading or something? Should I disconnect the battery for a while and then try?

Anyone have a problem like this before? Cranks no problem, I have fuel pressure too, but seems like now I have no spark? Shouldn't it try to fire off??

Hmm hooked the battery up, crank crank crank. This thing just won't fire off, like there is zero spark, won't even sputter. What in the world have I done to this car? haha. Could I have damaged a relay or fuse when I tried to plug the coil for cylinder 4 back in???