I understand, that computer has been a challenge for a long time. I wish the best. It sounds like it must be the luck of the draw when you order one, could be perfect, could be a bomb.
The other day, I was looking in the Tacoma engine bay. I remember my 1960 Flcon straight six - 3 on the column. I could have crawled into the vacant space. I miss messing with Dwell angles, timing lights, points, rebuilding carbs. It was so much fun with a feeling of achievement when finished and the darn thing started and ran. I could spend hours fooling around with the cars and talking engines and all. Now I change plugs, oil, steering fluids and grease the drive shaft, most of the rest is beyond me. I can't even work on my rear breaks because they are involved with an "automatic" locking differential.