I was looking at the fuel injection schematics of my early 90’s Toyota Corolla with electronic fuel injection, and it appears all 4 of the injectors are controlled by the same electrical signal. I would have guessed the injectors would time their injection with the valves, but it appears they si…

Do all 4 fuel injectors inject fuel simultaneously?

George_San_Jose1 July 7, 2012, 4:07am 3

There’s definitely four separate injectors, an injector situated in the head near each intake valve.

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