An
ignition system in which the timing and firing
of the spark plugs is controlled electronically. Cars manufactured
today employed an engine control unit to regulate fuel delivery,
ignition timing, and firing order. The earliest
electronic ignition systems began to appear on production
models in the 1960s, although these still relied on a distributor and points. In the 1980s electronic ignition systems evolved
alongside fuel injection systems and, eventually, the functions
of both became combined in the engine control unit.
Home page