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Check to see if you are getting spark from the coil to the distributor. I suppose the engine is a 5.7 liter?If not getting spark to the cap, then check for power and ground pulse at the coil.If there is spark at the cap, replace the ignition rotor. If there is no power or ground pulse at the coil,check to see if the ignition rotor is spinning when the starter is engaged. If the distributor is not spinning while cranking the engine there are several more things you'll need to check,i.e.,distributor gear and pin as well as oil pump if the pin or gear are damaged.
As you standing in front of the engine looking at the coil pack from left to right....2-5-4-3-6-1. cylinders 1-3-5 are on the passenger side and 2-4-6 are on the drivers side.
You listed all the components involved in spark timing and control- coil, ignition module, pcm, wires, plugs, crank sensor, and cam sensor.
Cylinders 1 and 4 have the same coil for both, so concentrate on that coil. You still have a good blue spark on cylinders 2 and 3? If you have spark there, I don't know about the cam sensor-I think it would be good if it works at all. You need to check if you have 12 volts power to the coil for 1 and 4.
Did you mean coil the 1994 3.1 did not use a distributor , sounds like a bad coil pack and cylinders #3 and #6 do use the same coil. I would also check 3 and 6 plug wires this system is a waste spark design meaning when # 3 coil fires it is supposed to go through #3 plug wire , through #3 plug ( ground) through the engine block through the #6 plug then through the #6 wire then back to the coil, Then when #6 fires it works the opposite way, so in theory you could have one bad wire affecting 2 cylinders .....
1991-1994 2.9L and 3.0L Engines Firing Order 1-4-2-5-3-6
1995 And Later 3.0L V-6 With DIS Ignition System Firing Order 1-4-2-5-3-6
4.0L Engines Firing Order: 1-4-2-5-3-6 DIS Ignition System
please try checking the contiunity of the ignition cable (spark plug cable) and the spark plug itself, if ok check the distribution cap and rotor for the contacts, good luck
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