[Gary Sullivan]

Seems I fixed the tail lights. The design isn't a particularly good one. Several pieces are compressed together and it doesn't make for a good ground to the metal casing for the lights. Even if they are clean and lubed. After what seems like a zillion tests, I attached a common ground wire to all the different lamp housings, to the side of the bulb the bulb and ran that to the body and that seems to have fixed the tail light issue and they are much brighter.
Now on to the fuel pump circuit.