Three shops in and can not fix. 1995 Chev Blazer 4.3L. No issues for 2 years. First sign was driving on a road trip 150 miles in and it stalls on Hwy. Local mechanic messes with the Spider Fuel Injector set up and it starts (Repairs Injector). 5o miles in leaving shop and it stalls again and wont start. Next mechanic again replaces the repaired injector and it starts. Road trip 400 miles no problem. Days later does not start. New mechanic changes fuel pump. Days later wont start. Changes fuel pump again. Two days later wont start. Symptoms seemed more inline with bad ICM? Any help would be appreciated.

 

when it enters a stall condition you want to check for spark, carry a spark tester with you, drive it until it ****s up, Pull a plug wire.
Failing that, move back up the chain to your wiring, you want to make sure you are getting battery voltage on the pink wires running into the ICM and Coil. Check this between the connector ground AND battery ground post to eliminate a bad ground issue.