Cis jetronic has everything you need for professionally repairing and recovering bosch kjetronic 19731994, kjetronic lambda, and kejetronic 19851993 fuel distributors. Kejetronic cis e fuel pressure testing is very similar to the old mechanical version. Jan 25, 2012 cis fuel injection operation by bob tucker. K jetronic cis fuel system diagram shown below is a schematic diagram of fuel lines in a k jetronic as a whole with noise damper and drain line at the fuel accumulator. 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. The following table is a guide to the fuel paths marked by each blue arrow in figure 6. 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. Fuel pressure testing f getting back to basics is not what it used to be. Detach the operational relay set from the relay block as well as from the safety appliance located under the steering tube. Bosch licensed the concept to many automobile manufacturers. The key is to advance the timing to the peak power point.
Infact i used my same tester i bought years ago to work on my non e 450sel 6. Mechanical fuel injection bosch k jetronic, bosch k jetronic fig. Bosch kejetronic overview mercedesbenz forum benzworld. Bosch ke jetronic continuous injection system mechanical fuel injection overview part 1of 6 fuel injection system bosch cis e 1986 fuel systems mercedesbenz cis e electronic control system description the fuel injection system used on all mercedesbenz gasoline engine vehicles uses.
Bosch kejetronic continuous injection system mechanical fuel injection overview part 1of 6 fuel injection system bosch cise. This synthesis, comprising the mechanical basic functions coupled with electronic adap tation and opti mization functions, is the kejetronic. In this system, the injection command unit controls only the fuel system. Sep 18, 2019 ke3 jetronic pdf mercedes suggests that special tools are required to adjust the mixture on the bosch ke3jetronic. Porsche bosch k jetronic cis cfi vs mfi i have a bosch k jetronic cis system in my 1975 porsche 911 s 2. 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. This synthesis, comprising the mechanical basic functions coupled with electronic adap tation and opti mization functions, is the ke jetronic. With the kjetronic, the preparation is performed by the mixture control unit which consists of a fuel distributor and an airflow sensor. 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. Reproduction, copying, or translation of this publication, including excerpts therefrom, is only to ensue with our previous written consent and with source credit. Since its introduction, the kjetronic gasolineinjection system has pro. The primary pressure regulator that is installed in the fuel distributor housing maintains a constant pressure in the fuel system of the kjetronic.
F k jetronic 320i u electronic f l jetronic electronic fuel injection only. 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. 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. The details in this file refer to ke jetronic 19841987 on the us coupe and 4k the 1987. 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. The 190e utilizes an electronically controlled version of the k jetronic injection system called ke jetronic cis e. This further deflects the control plunger in the fuel distributor and correspondingly supplies additional fuel.
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. How to professionally tint a car door window 20 vw jetta for beginners duration. The warmup regulator is installed on the engine to absorb its heat. Bosch cis fuel injected engine cold and hot start problems duration. The essential difference between the two is mixture correction by means of electronically controlled correction functions cis e. 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.
Inyeccion bosch kejetronic by jonathan ulloa cascante on prezi. Apart from minor alterations the basic principles of the hydraulics and mechanics used on the k jetronic system are unchanged on the ke jetronic system. Or lets have a look at one more version bosch cise continuous injection system electronic. 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. Bosch classic, remakes, k ke jetronic fuel distributor. Bosch k jetronic fuel injection shop service repair manual.
The dedicated shade tree mechanic can do it, but needs to be wellinformed first. This manual will describe the kjetronics function and its particu lar. 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. Bosch k jetronic cis explained bosch k jetronic fuel distributor seal replacement video to show how i replaced the. 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. Bosch kjetronic cis explained bosch kjetronic checking your ke jetronic fuel. Bosch cis k jetronic flow testing pt 2 flow testing a bosch cis k jetronic fuel injection system from a 1984 mercedes 380sl. Bosch classic, remakes, kkejetronic airflow sensor. Gasoline fuelinjection system ke jetronic bosch, robert on. The mechanical portion of the cise system consists of the mixture. Ke3 jetronic pdf mercedes suggests that special tools are required to adjust the mixture on the bosch ke3jetronic. 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. 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. In the le jetronic system, the injection valves spray the fuel simultaneously, what is to say, they are all driven at the same time.
Ke jetronic cis e fuel pressure testing is very similar to the old mechanical version. As most of the time the only part that has failed is the diaphragm. 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. Primarypressure regulator, kjetronic bosch classic. These adjustments are intended to be followed by an actual exhaust gas co check to ensure. Bosch kejetronic system description fuel injection engines. 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.
This particularly cost to travel on the way to fuel injection for efficient singlepoint injection unit passenger cars. Bosch kejetronic system description free download as pdf file. Illustrations, descriptions, schematic diagrams, and other data only serve for explanatory purposes and for presentation of the text. I am also addressing the basic settings involved in adjusting the fuel mixture here. Aug 18, 2019 ke3 jetronic pdf mercedes suggests that special tools are required to adjust the mixture on the bosch ke3jetronic. Mar 02, 2012 how to rebuild front brake caliper vw audi skoda seat new piston and seals complete guide duration. Solex fallstromvergaser 32 pci 1 e vw industriemotor 46 ps. It was a very clever system, which could compensate for variables like engine temperature and air density without the use of electronics. Infact i used my same tester i bought years ago to work on my non e. Cis e, kejetronic, fuel injection training created date. Rebuild instructions click here for full instructions. Simple troubleshooting for suchthings as anostart or poor performance problems requires an under standingofhowthe particular systemoperates, and howto diagnoseit. The warmup regulator, also called the control pressure regulator, lowers the control pressure of the k jetronic when the engine is cold. The mixture preparation system meters fuel to correspond with the amount of intake air.978 872 1526 1514 1000 792 469 10 849 1122 639 1567 699 574 1512 1231 529 761 168 143 1140 374 442 949 121 748 1063 1376 246 1490 96 671 60 1276 459 3 353 375 633 1054 705 125