Help!

93 chevy p/u with 5.7 140K miles. started out as crank but no start 2 days ago. . sprayed starter fluid in tbi and it started and ran fine . condition stayed the same until today. now won't start with starter fluid. fuel pump runs. i don't see any fuel spraying from the tbi injectors during cranking.. Plus , I pulled a plug out and didn't see any spark when i arc it across the block. check the coil and it has continuity. any thoughts ? Thanks, Mike

check the ignition control module. i had a TBI camaro once with that problem. easy fix. hope it's that, good luck.