Daily;

My compliments! You make some excellent points, which I have elaborated on in my post! Even the quality electrolytic caps which Bosch used in their FI comps may be showing signs of old age by now, and so experience electronics guys (like I expect you are!) could easily see this as being a cause of Gregs symptoms!

One thing I have to say about the under-seat location of the FI comp, is that I can understand it perfectly!...it's one of the best protected places in the vehicle, and out of the heat of the engine compartment...right under the passengers' butt, and more accessible than under the dash (although that location was also used)! In some formula race cars that's where the fuel cell is for the same reason...it may seem strange at first, but you want to protect the tank from damage only second to the driver (the fact that it is a big mass also makes it desirable to bring it as close to the CG as possible)!

Cheers