Kejetronic cis e fuel pressure testing is very similar to the old mechanical version. The mechanical portion of the cise system consists of the mixture. Bosch k jetronic cis explained bosch k jetronic fuel distributor seal replacement video to show how i replaced the. F k jetronic 320i u electronic f l jetronic electronic fuel injection only. Solex fallstromvergaser 32 pci 1 e vw industriemotor 46 ps. We as come up with the money for hundreds of the books collections from outdated to the supplementary updated book with reference to the world. Rebuild instructions click here for full instructions. Bosch ke jetronic system the bosch ke jetronic fuelinjection system is fitted to escort rs turbo models and is a further development of the k jetronic system. Test results show the improvement in fuel economy and in emissions.
Bosch k jetronic fuel injection shop service repair manual. In the case ofthe bosch cise fuel injection sys tem,thereis morethanmeets the eye. How to professionally tint a car door window 20 vw jetta for beginners duration. Bosch kejetronic continuous injection system mechanical fuel injection overview part 1of 6 fuel injection system bosch cise. These adjustments are intended to be followed by an actual exhaust gas co check to ensure. Reproduction, copying, or translation of this publication, including excerpts therefrom, is only to ensue with our previous written consent and with source credit. The warmup regulator, also called the control pressure regulator, lowers the control pressure of the k jetronic when the engine is cold. Rebuild instructions click here for full instructions it is important not to dismantle the fd more than nesasary, unless it is corroded or gummed up inside. Porsche bosch k jetronic cis cfi vs mfi i have a bosch k jetronic cis system in my 1975 porsche 911 s 2. Fuel pressure testing f getting back to basics is not what it used to be. Inyeccion bosch kejetronic by jonathan ulloa cascante on prezi. In the le jetronic system, the injection valves spray the fuel simultaneously, what is to say, they are all driven at the same time. The warmup regulator is installed on the engine to absorb its heat.
Bosch kejetronic system description fuel injection engines. Mercedes suggests that special tools are required to adjust the mixture on the bosch ke3 jetronic cis e fuel injection, such as is used on the 198891 560 series motors. Remove one injector line from the top of the fuel distributor, and while looking into the injector port in the top of the fuel distributor. Infact i used my same tester i bought years ago to work on my non e 450sel 6. The bosch continuous injection system cis is a hydraulictype fuel injection system which uses an air flow sensor, that is mechanically connected to a hydraulic valve, to control. Bosch classic, remakes, k ke jetronic fuel distributor. Kjetronic cis fuel system diagram shown below is a schematic diagram of fuel lines in a kjetronic as a whole with noise damper and drain line at the fuel accumulator. Bosch classic, remakes, kkejetronic airflow sensor. K jetronic system overview fuel supply 14 fuel metering 18 adapting to operating conditions 24 supplementary functions 30 exhaustgas treatment 32 electrical circuitry 36 workshop testing techniques 38 k jetronic since its introduction, the k jetronic gasolineinjection system has proved itself in millions of vehicles. Jetronic is a trade name of a fuel injection technology for automotive petrol engines, developed and marketed by robert bosch gmbh from the 1960s onwards. Aug 18, 2019 ke3 jetronic pdf mercedes suggests that special tools are required to adjust the mixture on the bosch ke3jetronic. This particularly cost to travel on the way to fuel injection for efficient singlepoint injection unit passenger cars. Jan 25, 2012 cis fuel injection operation by bob tucker.
Nov 21, 2009 ning of the era of fuel injection at these were joined by bosch mono bosch, but there was still a long path jetronic in 1987. It was a very clever system, which could compensate for variables like engine temperature and air density without the use of electronics. Ke3 jetronic pdf mercedes suggests that special tools are required to adjust the mixture on the bosch ke3jetronic. Cis jetronic has everything you need for professionally repairing and recovering bosch kjetronic 19731994, kjetronic lambda, and kejetronic 19851993 fuel distributors. Aug 31, 2009 after assembly of the fuel system, run the fuel pump and depress the air flow sensor plate for a couple of seconds to bleed air out of the fuel distributor. This synthesis, comprising the mechanical basic functions coupled with electronic adap tation and opti mization functions, is the kejetronic. This system is a further development of the mechanically controlled cis system. Now let us have a look how bosch ke jetronic fuel injection system can be diagnosed and repaired on an example of audi 100 2. This manual will describe the kjetronics function and its particu lar. Gasoline fuelinjection system ke jetronic bosch, robert on. The dedicated shade tree mechanic can do it, but needs to be wellinformed first.
Bosch k jetronic manual audi 200 bosch k jetronic fuel distributor quick look whilst ive got it out of the car i thought id give you a quick look at a fuel distributor from a bosch ke jetronic or cis. Cis e, kejetronic, fuel injection training created date. Mechanical fuel injection bosch k jetronic, bosch k jetronic fig. The technical instruction bookletfuel injection continuous injection system cis at the back of the manual describes the components and operation of the k jetronic fuel injection system in detail.
Or lets have a look at one more version bosch cise continuous injection system electronic. Infact i used my same tester i bought years ago to work on my non e. The key is to advance the timing to the peak power point. Mar 02, 2012 how to rebuild front brake caliper vw audi skoda seat new piston and seals complete guide duration. Primarypressure regulator, kjetronic bosch classic. Bosch cis k jetronic flow testing pt 2 flow testing a bosch cis k jetronic fuel injection system from a 1984 mercedes 380sl. Jun 17, 2019 ke3 jetronic pdf mercedes suggests that special tools are required to adjust the mixture on the bosch ke3jetronic. Since its introduction, the kjetronic gasolineinjection system has pro. There is so much mystery surrounding the cis continuous injection system fuel system bosch has dubbed k jetronic, i wanted to try and make some sense of it for all porsche owners. Illustrations, descriptions, schematic diagrams, and other data only serve for explanatory purposes and for presentation of the text. Cis e, ke jetronic, fuel injection training created date. The mixture preparation system meters fuel to correspond with the amount of intake air.
With the kjetronic, the preparation is performed by the mixture control unit which consists of a fuel distributor and an airflow sensor. Bosch cis fuel injected engine cold and hot start problems duration. Bosch kjetronic cis explained bosch kjetronic checking your ke jetronic fuel. Bosch licensed the concept to many automobile manufacturers.
The following table is a guide to the fuel paths marked by each blue arrow in figure 6. The le jetronic system is analog, and therefore it does not keep in memory possible damage that may occur. May 28, 20 ke jetronic fuel mixture adjustment in the mid 1970s, robert bosch gmbh developed a mechanical fuel injection system called k konstant jetronic. As most of the time the only part that has failed is the diaphragm. The 190e utilizes an electronically controlled version of the k jetronic injection system called ke jetronic cis e. The primary pressure regulator that is installed in the fuel distributor housing maintains a constant pressure in the fuel system of the kjetronic. Simple troubleshooting for suchthings as anostart or poor performance problems requires an under standingofhowthe particular systemoperates, and howto diagnoseit. Detach the operational relay set from the relay block as well as from the safety appliance located under the steering tube. Bosch kejetronic overview mercedesbenz forum benzworld. But the mercedes company had decided to leave it all to japan and started working closely with bosch closely to improve, upgrade, and modernize the system for it to meet higher standards. Ke jetronic cis e fuel pressure testing is very similar to the old mechanical version. I am also addressing the basic settings involved in adjusting the fuel mixture here. Sep 18, 2019 ke3 jetronic pdf mercedes suggests that special tools are required to adjust the mixture on the bosch ke3jetronic. The details in this file refer to ke jetronic 19841987 on the us coupe and 4k the 1987.
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