L-Jetronic

Term by Bosch to describe fuel injection system controlled by the air flowing through a sensor with a movable vane, or flap, which indicates engine load. The "L" is for luft "air." Later versions of L-jet are equipped with a Lambda (oxygen) sensor for better mixture control. Bosch originally used the term Air-Flow Controlled (AFC) Injection to denote L-Jet system in order to differentiate them from pressure controlled D-Jetronic system