91 5.0 TBI won't start - no fuel nor spark

My 91 Firebird 5.0 TBI was running great, then died suddenly. SES light on occasionally - code 22 (Throttle Position Sensor low voltage) for a few weeks with occasional erratic idling. Now, will crank, but injectors don't fire, and engine won't fire at all with gasoline poured in. All fuses good. Replaced ECM - no change. Fuel pressure fine. Suspect spark control module - but would that shut down injectors, too?

Seeking guidance.
SL

did your replace the prom?

The eratic idling would be your Igntion control module but that wouldnt stop your car from turning on.

Yes it will, the pick up coil signal goes through the module.

hey, i had this probelm on my 88 camaro. I installed a negitively charged battery in it and blew computer, injectors, fuse able link, and my Ignition Module, and thats ur problem. what this does is turns on ur injectors and ur spark, replace it for less then 35$ and ur good as new. It should be located under ur distribuator cap. Good luck!

Only thing tho is for $35 it owuld have to be a el cheapo probably wells wich can fail again rapidly. Ac/Delco original is the way to go.