There was an early fuel injection system in about 1958 or so on some Mopars, manufactured by Bendix and adapted from an aircraft fuel injection design. It delivered more power and more efficient fuel delivery than carburetors ever could. Unfortunately too late, they realized that it was poorly shielded against EMI, and if an old prewar car with a Magneto pulled up next to it, the new fancy fuel-injected car would stumble and shut off.
Cars are electrically incredibly dirty. Alternators generate electricity at continuously varying voltages and Hertz, and inexpensive voltage regulators are there to attempt to turn that garbage AC power into something usable in DC, which itself fluctuates in voltage up and down, sometimes bottoming out as low as 8V, and sometimes as high as 16V on a nominally 12V system. There are ignition coils storing up and discharging extremely high voltage to fire the spark plugs tens of thousands of times a minute through inexpensive and electrically-leaky spark plug wires, and there are magnetic systems like the air conditioning compressor clutch as well as weaker ones like the various position/timing sensors for the cam, crank, transmission output shaft or differential, etc.
I can totally see how a particular bit on an automotive computer could be flipped.