Just got around to putting the used icm in, and we have spark! Sadly not starting still, but sounds very close to starting. Looked at every spark plug, and a few of em are sparking orange, so pretty weak. Side note, when starting, after a few cranks I hear a blowing noise? Like pressure from somewhere is being relieved. I’ll attach a sound clip in a little bit. Any ideas?

 

Note from D51:

Check compression.

Compared to what? What it's supposed to be? You could have a catastrophic failure.

 

At the time it seemed slow, but now that I have spark it is cranking to where it is almost starting. I believe the cause is weak spark. Gonna swap the injectors around to test

 

I got shocked once about 40+ years ago and said "never again". I made this simple tool for testing plugs & wires.