No spark coming from the distributor cap. on 1990 Chevrolet G Series Van (G20)

Replaced coil and had module tested, both are good, still no spark, no sign of distributor cap problems?

Check the ignition pick up AC Delco part # 10496783 about $28 at your local parts store, But have them double check that number
Thanks,is there a way to check it before removing the distributor?
Well if you changed everything else and numerous manufacturers are making this part then it has to have failed and it looks like the distributor has to come out to replace this Napa has them for about $15