Mercedes Ke-Jetronic - About 5 generations of KE-Jetronic

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Time code
0:00 Intro
0:05 - 0:50 About the video
0:51 - 2:05 Join/Thanks/Patreon support
2:06 - 3:21 The continuation of the intro
3:22 - 3:50 The Mercedes engines included in this video
3:51 - 4:46 About the KU-Jetronic in brief
4:47 - 6:59 About KE-Jetronic and why the letters D,L,K in Jetronic names
7:00 - 8:08 The way KE-Jetronic functions
8:09 - 9:55 The example how ECU sends current on the EHA&ICV
9:56 - 10:40 What JETRONIC actually means
10:41 - 12:07 From K- to KE-Jetronic/modifications
12:08 - 18:28 The KE1-Jetronic
18:29 - 22:32 The KE2-Jetronic
22:33 - 29:42 The KE3a-Jetronic
29:43 - 37:45 The KE3b-Jetronic
37:46- 40:54 The KE5-Jetronic
40:55 - 45:57 About the advantages and disadvantages of the system
45:58- 47:06 The bitter truth about the system and the conclusion
47:07 - 47:41 Like/share/ subscribe plus girls
47:42 - 47:52 The special friends of the channel
What am I talking about?
My topic is the KE-Jetronic injection system which I try to demystify as much as I can.
For all of you to understand the system in brief - Developed in 1973 and being mounted into cars up to 1993 as it went in history. But why these to letters!?(KE) K(from German "kontinuierliche Einspritzung" meaning continuos injection, without interruption) the MECHANICAL injection system on which the fuel starts flowing from the fuel tank sucked by the FUEL PUMP and delivered to the FUEL DISTRIBUTOR which sends fuel to the INJECTORS while the majority of it flows through the FUEL PRESSURE REGULATOR through its return line back to the fuel tank again. The letter E(elektronische Gemischanpassung/electronically controlled mixture adaptation) has to mark the electronic sensors (the developement starting from early eighties) which had to inform the ECU about the current state of the engine so that the ECU(Electronic Control Unit) then could create current signal in mA(miliampers) and send it to four crucial components for the system - the EHA(the electro-hydraulic actuator, a unit consisting of a magnet, an electromagnet and a baffle plate) which had to fine tune the engine in each of its phases, the ICV(the idle control valve), the unit which was predicted for the engines perfect idle, the X11(the diagnostic socket) where the duty cycle(the ideal mixture) was adjusted and the X11/4(the code reader) - the socket which from any codes were read if present using an OBD1 scanner.
An extraordinary injection system which could be fully repaired in your own garage using a multimeter and a pressure gauge only for its fine tuning, together with some common tools.
"Happy Mercedesing"