glsubby

I recently purchased a 1985 GL Hatchback, that at the time was running well and is in mint condition. The owner changed wires, plugs, and cap. I put a new battery in it the day after I purchased it. I drove it for about a month, no issues, running awesome. One day I hop in and it blows the #13 Ignition Coil fuse. I check all grounds (that are visible), change the IG Coil, the starter is fine. ECU is flashing Code 14, Duty Solenoids. I followed the black ground from the fuse box all the way to the IG Coil to the cap with a ground fault meter. It signals everywhere. I am at a dead end and can't decide if the ECU is bad or if its a relay...Fuse 13 powers a lot of stuff. Thanks for any advice.