My '89 has the fuel door lock in place and I have a key for it and the lock works just fine. But at some point in the past the door was clearly forced open as the tab piece on the end of the lock that pivots behind the piece bolted to the car body is snapped off.
It’s just a small part that I can probably fabricate if I need to but if someone has one lying about I’d gladly buy it. Thanks!
Here’s a picture I found online of the tab piece on the inner end of a lock barrel.