1998 Oldsmobile Silhouette engine no start

Replaced heads, installed wiring incorrect on spark control module. Purple and yellow never connected but the 2 wire for pass. Side was connected to the driver side of module. Don't figure shouldn't be able to do that! Battery was about dead and went to start acted like all plug wires were wrong. Put battery charger on and with ignition off as the battery was taking a charge I heard a load pop like firecracker. Put wires on correctly and engine turns over with no spark. Replaced spark control mod and I get no fire, cam sensor good as I get an rpm reading from scan tool while cranking 310 rpm. Checked all fuses.