I have a random issue. Kind of a buck or cutout that finally set ses light. found a vac leak, now its not as bad but still there. oh by the way its a 93 rs. When I do the jumper for the codes, the fan comes on and ses light illuminates but never flashes.

 

solid light may be a icu problem. stop by the local parts store and see if they have a obd1 scanner that they will hook up for you or let you do it. also see if they have a code reader you could run out and see if it works. without the codes it could turn into a very expensive turkey shoot trying to find issue/s by replacing everything.

 

have a look at 2.5 here, it has ignition info https://camaroforums.com/forum/93-02...rt-here-38462/

 

have tried 2 different ecu both used. both ses lights solid no flash, one I put in today doesn't stumble as much. gonna change fuel filter tomorrow. it only does it if you take off hard or at highway speeds.dont know bout the ses though.

 

im not so sure you can flash the 93 3.4. has a different icu. you may need a scanner. have you tested the fuel pressure yet? usually rent a tester at the parts store.