87 gmc sierra tbi 350
Runs for a few minutes and shuts of suddenly.
Ive replaced all fuel system and did full tune up.
Injection seems fine, runs fine, then cuts out. I
ordered and ignition coil but havnt tried it yet.
Ignition modules and distributor pickup coils were common failures on these, if they have never been replaced best to do them now. Also make sure the ground strap for the ignition coil is still there and you have a good ground.