Back in the day, I had a customer who owned a 1981 Buick Park Avenue. It came equipped with the "Y" engine, a 307 cubic inch V-8, a Turbo 2004R transmission, and a 3:08 final drive differential.
This car was fitted with the then cutting edge technology of C-3 computer system and an electronic feedback Rochester Quadrajet Carb at 750 CFM max capacity.
He and his family took the car on Vaycay one summer to points west towards Calyfornia. In New Mexico, the Check engine light came on. He called me from the motel they got for that night (This was long distance and there were no cell phones).
He literally opened the hood, saw that the engine was still there and appeared to his layperson eyes, to be intact. So, as he said: "I checked that the engine was still there and shut the hood".
There was always something going wrong with that dinosaur of EEC computerized systems. So, when the time came, I took the 307 out, tossed it and the wheezy 2004R. In their place, I installed a regular 403 Olds motor (a direct bolt in) and put a non lockup TH350 in the car.
Power was up to nearly double that of original levels ang as mileage was an astonishing 18+ MPG. With the removal of the Electronic Engine Controls, I made the car a pleasure to own and drive, according to both he and his wife.
Vehicles today and claustrophobic emission/ EPA laws and networking systems in the overall control over these here modern vehicles means they cannot be retrofitted without violating laws and costing astronomical amounts of money.
Good memory, though!