Ljetronic the bosch ljetronic also called afcair flow controlled fuel injection was put into usspec type 4s in the last model year 1974. 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. 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. Nov 07, 2015 vehicle diagnosis with active troubleshooting. 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. You will be glad to know that right now bosch ke jetronic manual pdf is available on our online library.
Spec alfa romeo gtv6s, milanos, and 19821989 spiders, bmw e12 5 series and various 3 series cars, the datsun 280z and 280zx, all u. The injection has as function to provide the amount of fuel exactly dosed, necessary to. 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. Ljetronic fuel injection technical troubleshooting article. Detach the operational relay set from the relay block as well as from the safety appliance located under the steering tube. Or lets have a look at one more version bosch cise continuous injection system electronic. Fuel metering distributor repair kit for bosch k jetronic 8. Sistema le jetronic entre sus componentes podemos encontrar 1. Since remakes are not always economically feasible, airflow meters that are sent to us are assessed in the bosch plant and refurbished if necessary. This particularly cost to travel on the way to fuel injection for efficient singlepoint injection unit passenger cars. Download pdf bosch jetronic repair manual, download free bosch jetronic repair. Bosch k jetronic fuel injection manual linkedin slideshare.
Checking and repairing the bosch kejetronic fuel distributors by vitaly march 1, 2016 approximately up until 1994 mechanical fuel injection systems have been installed on certain mercedes, audi, volkswagen, ford etc. Plus a forum where drdjet and other experts help with competent advice and repair instructions. If the inlet air temperature sensor fails its resistance tests, you cant service just the sensor. Bosch continued development of the system, and it was last used in the d jetronic form in about 1976.
The le jetronic system is electronically commanded and injects the fuel in the intake manifold. Fuel injection pumps cars and light vans pdf free download. Mechanical fuel injection bosch k jetronic, bosch k jetronic fig. Injector connector adapter for installing ev14 uscar style injectors in harness applications originally intended for bosch jetronic motronic style connectors see comparison price each. 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. By club member john hall, who worked for volvo usa for many years.
Unfollow bosch jetronic to stop getting updates on your ebay feed. Order the complete gauge and directional control valve under the number kdep 1034. With our online resources, you can find bosch ke jetronic manual or just about any type of. Bosch k jetronic manual mercedes bosch ke jetronic manual bosch k jetronic service manual bosch ke jetronic workshop manual bosch d jetronic fuel injection manual manual k jetronic le jetronic l jetronic k jetronic k jetronic german k jetronic deutsch bosch manual bosch manual she bosch fsa 740 using manual bosch vp30 manual.
Le is the german designation of the european version of their air flow meter, with lu being the designation. Basically, it is pretty similar to the kjetronic with some changes and modifications. Bosch le jetronic bmw copyright equiptech boschlejetronic thereismuchconfusionabouttheactualtypeofinjectionsystemfittedtomanybmwmotorcarsduringtheperiod1980to. This kit will service the following fuel distributors. Now, the fuelinjected straightfour 110 ps 81 kw twoliter caminhead unit from the rekord e2 was available, although with little fanfare. There are several variations of the technology offering technological development and refinement. All of the information required for maintenance and service is available at the vehicle immediately.
Variants of d jetronic were used by other manufacturers ford, toyota, etc. The version that comes on the early e30 318i is l jetronic. Gasoline fuel injection system l jetronic bosch pdf download this manual may contain attachments and optional equipment that are not available in your area. Not only does this reduce a significant restriction in the intake, but it is a lot more accurate. Originally, volkswagen adapted the l jetronic for the type 4 air cooled 411 engines sold in the united states due to more. Bosch licensed the concept to many automobile manufacturers. Ljetronic service manual repair manual pdf download. Atp electronics ecu testing,remanufacturing and repair. The le jetronic command unit receives various input signals, from the various sensors that send precise information about the instant engine operation conditions. The program counts on about 0 stores throughout brazil. 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. Elementary l jetronic, two lifewithlis morethanjust enginebackfire and damaged air flow sensors. Fuel efficiency is surprisingly good, thanks to a bosch motronic 2 engine management system that controls the ignition system and fuel injection system bosch le jetronic.
The familiar yellow technical instruction series from bosch have long proved one of their most popular instructional aids. 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. Matching of the orings from the repair kit for bosch k jetronic 8 cyl fuel distributor. Then, the command unit processes this information received and calculate the appropriate fuel injection time, through an electric signal. The airflow sensor is therefore a functional component of the k jetronic. Licensing some of boschs ljetronic concepts and technologies, lucas, hitachi automotive. B cc bosch l,k jetronic qfp i e34with plastic fuel tank only 188 1295 m20. The following table is a guide to the fuel paths marked by each blue arrow in figure 6. 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. Ljetronic is the term used by bosch to describe a fuel injection system. Motronic 2 also cuts off the fuel supply whenever you release the accelerator pedal to further reduce fuel consumption. Le is the german designation of the european version of their air flow meter, with lu being the designation of the us version, i. Wellfounded knowledge helps to save time and money.
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. I really respect the thoroughness of the 914 community. Tips and tricks on how to easily assemble the distributor. Bosch ljetronic fuel injection troubleshooting, maintenance. Primarypressure regulator, kjetronic bosch classic. Onsomel jetronic systems, the air temperature sen sor is visible in the air flow meter inlet. Troubleshooting instructions reliably guide you, step by step, to the cause of the fault. Dec 09, 2012 simulating masses of air flowing into an m110 engine, by pushing down on the maf. L jetronic le jetronic k jetronic k jetronic deutsch k jetronic german 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 k jetronic k jetronic deutsch k jetronic german manual k. Pelican parts used to rent out a d jetronic tester to its customers. 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. Answers examples of answers to an employee self evaluation tcp50st50 manual skype brand guidelines accounting decision making control 6th edition solutions service manual of split air conditioner isc psychology question paper 2012 rca drc8310n manual maruti 800. While new carburated engines were used in the european markets, vw adapted the l jetronic for the type 4 in the us due to more stringent emissions and fuel consumption regulations. Bosch lejetronic fuel injection system volvo owners club.
Theres also jeff bowlsby, who built a neat breakout box to test his wiring harnesses. Tubular space frame, engine serving as load bearing component. The task of a fuel injection system is to supply precise amount of fuel to the combustion chamber at that particular moment. 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. 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.
D jetronic system uses constant fuel pressure and flow, so that only injection duration. 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. The bosch technical hotline is designed to provide specific assistance and practical support for routine work and to help deal with any problems arising in the course of motor vehicle servicing and repair. L jetronic fuel injection system the l jetronic is an electronically controlled fuel injection system which has the advantage of direct air flow sensing. Youmayassociate offidle hesitationwithd jetronic, but its not uncommon for a misadjusted throttle switch to cause the same problem on ljet systems.
Injector connector adapter for installing ev14 uscar style injectors in harness applications originally intended for bosch jetronic motronic style connectors. Sep 15, 2012 everyhing about bosch d jetronic some wrongly write djetronik fuel injection system equiped cars of all manufacturers from a as in auxiliary air valve via e las in ecu and m as in map sensor to z as in zero adjustment. To use this gauge for testing vehicles with l jetronic, modify as shown below. Mar 02, 2012 bosch k jetronic fuel distributor duration. It is a socalled hybrid a mixture of mechanical and electronic injection systems. Bosch ke jetronic manual pdf bosch ke jetronic manual pdf are you looking for ebook bosch ke jetronic manual pdf. The pressure gauge kdep 1034 is the same unit used to test bosch k jetronic cis systems and reads from 06 bar pressure. The l jetronic aod ils variants are electro nically controlled fuelinjection systems solenoidopersle jetronic in iha bosch technical instruclion series. Bosch monotronic system introduction 15 pages dated 1991 system ml4 opel ascona 2. Injector connector adapter, bosch jetronic to uscar ev14.
This range includes fuel distribution metering head units, warm up regulator and fuel pumps. Please consult your local distributor for those items you may require. Aug 31, 2009 bosch kjet mixture setting posted on august 31, 2009 by larry fletcher comments off on bosch kjet mixture setting 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. The lele2lu jetronic system is a development of the earlier bosch l jetronic fuel injection system. Bosch le jetronic ignition system distributor scribd.
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