Traps don't exist anymore. There was a recall and they were replaced with a soot canister or something like that.
I think that the '85's were a great year. The torque converter was changed as well as a few other things ( I can't remember right now).
By now I thought most every diesel owner had disconnected their emissions anyway.
I sold mine and I kick myself everyday. In fact, I'm trying to buy it back from the new owner.
BTW, I live in So. Cal also.
Craig