Mar 24, 2016 the l jetronic is an electronically controlled fuel injection system which has the advantage of direct air flow sensing. I really respect the thoroughness of the 914 community. Licensing some of boschs ljetronic concepts and technologies, lucas, hitachi automotive. The bosch d jetronic is an analog electronic control unit ecu developed in the sixties, when microprocessors were not jet available for general use, but this is not to say that the complex calculations crunched digitally by screaming fast arithmetic logic units alu of todays injection ecus, were not perfectly capable of being processed by.
Bosch l jetronic fuel injection troubleshooting, maintenance. The key is to advance the timing to the peak power point. Vw ljetronic fuel injection workshop manual created date. The fuel injectors are mounted in the inlet stubs to the engine inlet valves so that a finely atomised fuel spray is directed onto the back of each valve. The interacao is a relationship program and demand generation that bosch maintains with auto parts stores and independent workshops. Jetronic controls fuel supply while the electronic ignition system provides optimal ignition control motronic combines the two systems a computer controls the injection and ignition systems with reference to shared optimization criteria digital data processing and microprocessors make. Originally, volkswagen adapted the l jetronic for the type 4 air cooled 411 engines sold in the united states due to more stringent emissions and fuel consumption regulations. Bosch le jetronic ignition system distributor free 30. Report elba fiat bosch lejetronic please fill this form, we will try to respond as soon as possible. Mechanical fuel injection bosch k jetronic, bosch k jetronic fig. Now let us have a look how bosch kejetronic fuel injection system can be diagnosed and repaired on an example of audi 100 2. Bosch ljetronic fuel injection troubleshooting, maintenance. The lele2lu jetronic system is a development of the earlier bosch l jetronic fuel injection system. Before troubleshooting, testing or adjusting the kjetronic fuel injection system, the ignition system and the mechanical system of the engine compression, valve timing, etc.
Bosch monotronic system introduction 15 pages dated 1991 system ml4 opel ascona 2. Ljetronic system throttle and idle control n throttle opens to allow more air to sucked in to engine n small amount of air bypasses the throttle so the engine gets air and will idle. With the help of the electronic control unit a more precisive fuel metering is possible compared to conventional carburetors so that the more stringent emission standards could be matched. Bosch ke jetronic manual bosch k jetronic manual mercedes bosch k jetronic service manual bosch ke jetronic workshop manual bosch d jetronic fuel injection manual manual k jetronic l jetronic le jetronic k jetronic k jetronic deutsch k jetronic german bosch manual bosch manual she bosch fsa 740 using manual bosch fsa 740 operating. The l jetronic aod ils variants are electro nically controlled fuelinjection systems solenoidopersle bosch lh jetronic starting difficulties. The bosch ljetronic fuel injection system used in the porsche 912e is often referred to as the air flow controlled or afc fuel injection system.
The airflow sensor is therefore a functional component of the kjetronic. 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. Matching of the orings from the repair kit for bosch kjetronic 8 cyl fuel distributor. K jetronic see cis kjetronic is the term used by bosch to describe a fuel injection system which features continuous injection. Fuel injection the bosch le jetronic system is a multipoint injection system and pulses all injectors at the same time ie simultaneously and twice per engine cycle. Detach the operational relay set from the relay block as well as from the safety appliance located under the steering tube. A thorough understanding of the various components is required before working on k jetronic fuel systems. L jetronic system air mass measurement n fuel injection system has to know mass of air n airflow meter provides air mass flow information u mass is calculated by volume flow and density f need device to determine flow air flap on airflow meter f need temperature to determine density temperature sensor in air flow meter afm 1 throttle plate 2 air flow meter with. 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. They provide a clear and concise overview of the theory of operation, component design, model variations, and technical terminology for the entire bosch product line, and give a solid foundation for better diagnostic and servicing. Vw l jetronic fuel injection workshop manual author.
Report elba fiat bosch le jetronic please fill this form, we will try to respond as soon as possible. After a few days, you receive the repaired airflow sensor which is covered by the bosch exchange parts warranty. Ljetronic the bosch ljetronic also called afcair flow controlled fuel injection was put into usspec type 4s in the last model year 1974. Fuel metering distributor repair kit for bosch k jetronic 8. These adjustments are intended to be followed by an actual exhaust gas co check to ensure.
Ive been looking for an l jetronic tester ever since i discovered paul anderss excellent webpage documenting all the various testers hes located and collected. Kjetronic le jetronic l jetronic kjetronic german kjetronic deutsch manual kjetronic bosch ke jetronic manual bosch ke jetronic workshop manual bosch kjetronic service manual bosch k jetronic manual mercedes bosch d jetronic fuel injection manual le jetronic l jetronic kjetronic german kjetronic deutsch manual k. Lele2lu a 010902021 9705 3 system description system description general the lele2lu jetronic system is a development of the earlier bosch ljetronic fuel injection system. All books are in clear copy here, and all files are secure so dont worry about it.
The lejetronic command unit receives various input signals, from the various sensors that send precise information about the instant engine operation conditions. The ecu was much cheaper to produce due to more modern components, and was more standardised than the ljetronic ecus. Since remakes are not always economically feasible, airflow meters that are sent to us are assessed in the bosch plant and refurbished if necessary. Bosch ke jetronic manual bosch k jetronic manual mercedes bosch kjetronic service manual bosch ke jetronic workshop manual bosch d jetronic fuel injection manual manual kjetronic l jetronic le jetronic kjetronic kjetronic deutsch kjetronic german bosch manual bosch manual she bosch fsa 740 using manual bosch fsa 740. Bosch ljetronic l jetronic rx7 brought to you by the team at created date. Mar 03, 2018 matching of the orings from the repair kit for bosch k jetronic 8 cyl fuel distributor. I am also addressing the basic settings involved in adjusting the fuel mixture here. By club member john hall, who worked for volvo usa for many years. Then, the command unit processes this information received and calculate the appropriate fuel injection time, through an electric signal. Bosch le jetronic bmw copyright equiptech boschlejetronic thereismuchconfusionabouttheactualtypeofinjectionsystemfittedtomanybmwmotorcarsduringtheperiod1980to. The dedicated shade tree mechanic can do it, but needs to be wellinformed first.
The lele2lu jetronic system is a development of the earlier bosch ljetronic fuel injection system. The bosch l jetronic fuel injection system used in the porsche 912e is often referred to as the air flow controlled or afc fuel injection system. Tips and tricks on how to easily assemble the distributor. L jetronic system fuel injectors n open when energized by ecu not continuous as k jetronic. Contact the seller opens in a new impala ss mailing list come to you in pdf format and. Since publishing this information the prices have skyrocketed because buyers and sellers know what this item looks like now.
The bosch djetronic electronic fuel injection system is composed of 3 major subsystems. Ljetronic fuel injection technical troubleshooting article. There are several variations of the technology offering technological development and refinement. Pelican parts used to rent out a d jetronic tester to its customers. L jetronic see afc l jetronic is the term used by bosch to describe a fuel injection system controlled by the air flowing through a sensor. All sensors are used here to calculate when and how long to open the fuel injectors. Ljetronic fuel injection system the ljetronic is an electronically controlled fuel injection system which has the advantage of direct air flow sensing. Read online bosch k jetronic service guide book pdf free download link book now.
Pelican parts used to rent out a djetronic tester to its customers. The jetronic is a very reliable unit and rarely needs attention. Bosch k jetronic fuel distributor quick look duration. A thorough understanding of the various components is required before working on kjetronic fuel systems. Bosch k jetronic fuel injection manual pdf document. Bosch licensed the concept to many automobile manufacturers. Repair kit to rebuild a bosch k jetronic fuel distributor metering, this kit will service all 8 cylinder aluminum units that do not have eha.
Le1jetronic, le2jetronic, le3jetronic 19811991 this is a simplified and more modern variant of ljetronic. Unfollow bosch jetronic to stop getting updates on your ebay feed. I was pretty hyped that it was a vintage bosch ecu tester and eagerly awaited the documentation to verify it was intended to test l jetronic and got lucky. Le is the german designation of the european version of their air flow meter, with lu being the designation of the us version, i. The details in this file refer to ke jetronic 19841987 on the us coupe and 4k the 1987. The fuel injectors are mounted in the inlet stubs to the engine inlet valves so that a finely atomised. Mar 02, 2012 bosch k jetronic fuel distributor quick look duration.
Not much is standardized in djetronic connectors, but all of them have a 25 pin amp connector with a spacing of 5. The task of a fuel injection system is to supply precise amount of fuel to the combustion chamber at that particular moment. Bosch le jetronic ignition system distributor scribd. Looking on that ecu connector, pin 25 is on the right side where wiring harness exits ecu, pin 1. Pdf application of hybrid ics to the automotive electronics market. This kit will service the following fuel distributors.
With the help of the electronic control unit a more precisive fuel metering is possible compared to conventional carburetors so that the more stringent emission standards could be. Mercedes suggests that special tools are required to adjust the mixture on the bosch ke3jetronic cise fuel injection, such as is used on the 198891 560 series motors. Bosch le jetronic ignition system distributor free. The following table is a guide to the fuel paths marked by each blue arrow in figure 6. Download pdf bosch jetronic repair manual, download free bosch jetronic. The program counts on about 0 stores throughout brazil. The connections between afm and ecu are simplified.
With our online resources, you can find bosch ke jetronic manual or just about any type of. The familiar yellow technical instruction series from bosch have long proved one of their most popular instructional aids. Vw l jetronic fuel injection workshop manual created date. You will be glad to know that right now bosch ke jetronic manual pdf is available on our online library. While new carburated engines were used in the european markets, vw adapted the ljetronic for the type 4 in the us due to more stringent emissions and fuel consumption regulations. Mar 27, 2020 download bosch k jetronic service guide book pdf free download link or read online here in pdf. Converting the opel cih engine to fi bosch l or le jetronic is not quite as daunting as it would seem. Spec alfa romeo gtv6s, milanos, and 19821989 spiders, bmw e12 5 series and various 3 series cars, the datsun 280z and 280zx, all u.
Originally, volkswagen adapted the ljetronic for the type 4 air cooled 411 engines sold in the united states due to more. K jetronic le jetronic l jetronic k jetronic german k jetronic deutsch manual k jetronic bosch ke jetronic manual bosch ke jetronic workshop manual bosch k jetronic service manual bosch k jetronic manual mercedes bosch d jetronic fuel injection manual le jetronic l jetronic k jetronic german k jetronic deutsch manual k. Vw ljetronic fuel injection workshop manual pdf yumpu. Vw ljetronic fuel injection workshop manual author. The bosch djetronic is an electronical gasoline injection system which was introduced in 1967. Before troubleshooting, testing or adjusting the k jetronic fuel injection system, the ignition system and the mechanical system of the engine compression, valve timing, etc. The bosch djetronic is an analog electronic control unit ecu developed in the sixties, when microprocessors were not jet available for general use, but this is not to say that the complex calculations crunched digitally by screaming fast arithmetic logic units alu of todays injection ecus, were not perfectly capable of being processed by. Le is the german designation of the european version of their air flow meter, with lu being the designation. Through an exclusive team and targeted materials, we seek to relate to this channel and strengthen sales of bosch products. Chapter 3 of d jetronic article series by drdjet describes function, repair and tuning of the brain of d jetronic.
About the only thing that can go wrong with it is the plug can work loose if its not secured properly or the pins can get a little corroded which interfers with signals from sensors. First tester for d jetronic of course was developed by bosch and had bosch no. L jetronic is the term used by bosch to describe a fuel injection system. The bosch d jetronic is an electronical gasoline injection system which was introduced in 1967. Bosch ke jetronic manual pdf bosch ke jetronic manual pdf are you looking for ebook bosch ke jetronic manual pdf. Mechanical fuel injection bosch kjetronic, bosch k jetronic fig. Ive been looking for an ljetronic tester ever since i discovered paul anderss excellent webpage documenting all the various testers hes located and collected. In the us, salvage yards can only be used as a source for the l jetronic system used on 1975 opel models. The le jetronic command unit receives various input signals, from the various sensors that send precise information about the instant engine operation conditions. Theres also jeff bowlsby, who built a neat breakout box to test his wiring harnesses. The djetronic system measures incoming airflow by monitoring. Sandra lowe islamic law epistemology and modernity legal philosophy in contemporary iran middle east studies history politics lawjames norris markov chains pdfimproving speech and eating.
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