What is EFI?

OMG ! OH MY GOSH , I don’t understand, any thing here , what is EFI? This engine runs  by means of  a system, called the E.F.I. for Electronic Fuel Injection.   (includes spark in 1991)   (1989 to present) Gasoline engines, light cars and trucks only. A.k.a PCM power-train control module.(in later years) EPA enforced Evolution (forced): Almost … Read more