My friends 95 zj

Hey everyone im doing my friend a favor and helping him fix his 95 zj with the 4.0 inline. He said it just died on him a couple times and then the third time it had to be towed. It ran fine aside from that. I tested it today and it had no spark. My guess is to replace the ignition coil. If that does not work then change the crank shaft sensor. Is this the right move? I dont want to misguide him.
PS I verified the alternator was working. Plugs and leads and battery are new as well.

Test the CPS first, likely culprit with no spark and no injector pulse.

Okay ill let him know and change it when he gets the part. Its been like 6 years since I did one so I forgot which of the two should be changed first. Thanks!