St Louis SHO
Rollin' coal
Theres 1 12v at the coil, the other three wires are trigger wires. You need to verify that all the triggers are working. To do so, you need to verify they have square waveforms. Otherwise, swap PCM and see what happens. If the timing is off, which is 100% possible from a bad/incorrectly tensioned timing belt, you need to verify the easy stuff first.