miss in a 93 4 banger

[StellarSaleen]

My 93 4 cylinder has a terrible miss and I cant find the source of the problem. The 93's were distributorless and run by just a computer and a pair of electric distribution boxes. There's two sets of spark plugs per cylinder. Ive replaced the plug wires, replaced the distribution boxes, reset the computer, checked the compression and Im still left with a missing motor. Someone please drop me a line if you've had a similar problem or have any suggestions.