㉦Mercedes Ke-Jetronic㉦ - Reading codes in percents from the X11 diagnostic port

㉦Mercedes Ke-Jetronic㉦ - Reading codes in percents from the X11 diagnostic port #viralvideo Another of my videos in the row on Ke-Jetronic This video goes for W124 and W201 chassis. In this video I teach you how to check your codes on X11 diagnostic port if you have any using a duty cycle multimeter. Yes, this is possible measuring percents only. This way you can check if your TPS, CPS, potentiometer, lambda probe, EZL, OVP, ECU... are okay or not. The goal of this test is to get 50% - for those who don't have a lambda they have to get a steady reading of 50% and for the others who do they have to get the fluctuation between 50% For all those that have no pin 3 on X11 this test IS NOT POSSIBLE. Everything else you get means that you have a code somewhere in the system(or your mixture is either too lean or too rich). This method goes for M102 engines from september 1989. Instagram:   / fix_your_mercedes   Patreon:   / fixyourmercedes   TikTok:   / mercedeskeje   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"