Mercedes Ke-Jetronic Diagnosis part 2(read the description)

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In this video I explain how to tell which part is bad operational. The goal of my videos is to show you how to repair your KE-Jetronic car in your own garage using common tools. The part that has to be replaced you will have to buy and it depends on you if you are going to buy used or new, branded or not branded parts(which is not my advice to you).
And an important announcement: If you are of those who want their car to be diagnosed and repaired in half an hour, or you don't like popping up the hood and getting your hands dirty, then a KE-Jetronic car is not for you, either a Mercedes or any other KE-Jetronic car!
IF YOU DON'T KNOW HOW TO USE A MULTIMETER OR WHAT THAT IS, IF YOU NEVER UNSCREWED A SCREW OR WHAT SPARK PLUGS SERVE FOR, THEN BETTER DON'T BOTHER YOURSELF WATCHING THIS VIDEO, IT WON'T BE OF ANY USE TO YOU!!!
Repair your KE-Jetronic injection system in your garage or in front of your house using common tools. This tutorial is going to guide you how to diagnose an error on your system starting from its mechanical part up to its electric part using just a multimeter and a pressure gauge. You can do it yourself and I am here to give you nominal values and some useful advice. You will be surprised how easy it can be to repair your "girl", although you can't repair this system "just like that" without knowing anything. Do it once and you will be calm in next five years or 30k miles(fuel filter and lambda probe) and afterwards in next ten years or 90k miles you are going to experience first major issues(potentiometer, fuel pressure regulator, injectors). Not many mechanics know about this system and if they never read anything about it, then they won't be able in 100% to understand the way it works and then neither to diagnose it nor to fix any of its components. On the other hand, those same mechanics don't want to bother themselves with this system because if they knew how to repair it, they wouldn't do it, because todays cars are lot easier and faster to be diagnosed and repaired. Well, that's where I start!
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Timecodes
0:00 - Intro
0:16 - 0:37 About the Video
0:38 - 0:39 Diagnosing and repairing the mechanical components
0:40 - 2:48 The fuel pump
2:49 - 3:00 The fuel filter
3:02 - 3:35 The Fuel accumulator
3:36 - 8:36 The Fuel Distributor
8:37 - 10:02 The fuel pressure regulator
10:03 - 10:43 The Air flow meter
10:44 - 14:39 The injectors
14:40 - 14:42 Diagnosing and repairing the electrical components
14:43 - 16;25 The Oxygen sensor
16:27 - 17:41 The coolant temperature sensor
17:43 - 18:39 The Idle control valve
18:40 - 19:08 The Throttle position sensor
19:09 - 21:34 The EHA valve
21:35 - 22:11 The cut-off
22:12 - 23:30 The potentiometer
23:31 - 24:39 The Cold start valve
24:40 - 25:27 Like, share, comment, subscribe
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 "kontinuierlich" meaning continuos, 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(electronic) 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 mAmp(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"