I have seen a loose rocker arm set off a code 43. Also an exhaust leak near the knock sensor can do it too.

Very interesting. Can someone explain this?

Easy. The knock sensor reads the loose rocker arm or the exhaust leak and interprets it as a detonation knock thereby retarding the timing.

Well Guys, I guess I found the problem.
On Saturday I changed the Cap Rotor and IC Module.
The same codes, 42 and 43 came right back. I again checked the wiring then through my hand up in the air. It was too F'n hot and I had enough...
Sunday morning I went out early and changed the ECU with a 1994 unit I had purchased for a fellow OSO'r.
The engine started up and seems to run fine. I checked for fault codes, None.
I went boating and she run OK for the most part; I have a power steering pump problem, but...
After running for a 1/2 hour I check for faults and had none.
Hmmm...
Now, do I have to have the ECU reprogrammed?
I'll start another thread.