It overheated that once, and I thought it could be related to the missing condition that MikeD didn't get codes for yesterday. But yes, I already changed the T'Stat. It ran normally. Then next day, the apparent loss (intermittent of course!) of those two cylinders flagged by the codes. It's like you and Quebec, about 750 miles north of me now.
I forget how the Coil Pack connects. Could be a very good step, to check that connector!
SITREP 33 and Final. MikeD replaced the coil, Suby ran OK again, listed on Craig's and and sold on 20JUN17. Editorial remark: I'll miss that car! Probably driven it 10,000 miles myself over the years. CASE CLOSED