What is K-Jetronic?

The “K” in K-Jetronic means “Kontinuierlich” (German), meaning continuous. Commonly called ‘Continuous Injection System (CIS) in the USA. K-Jetronic is different from pulsed injection systems in that the petrol flows continuously from all injectors, while the fuel pump pressurises the petrol up to approximately 5 Bar.

What is the history of the Jeep Jetronic engine?

K-Jetronic debuted in the 1973 Porsche 911T and was later installed by a number of German, French, Italian and Swedish car manufacturers.

What is the difference between pulsed and Jetronic fuel injection?

K-Jetronic is different from pulsed injection systems in that the fuel flows continuously from all injectors, while the fuel pump pressurises the fuel up to approximately 5 bar (73.5 psi). The volume of air taken in by the engine is measured to determine the amount of fuel to inject.

What is a K-Jetronic fuel return?

The system is based on the K-Jetronic mechanical system, with the addition of an electro-hydraulic actuator, essentially a fuel injector inline with the fuel return.