Direct petrol injection system with bosch motronic med 7. Spec alfa romeo gtv6s, milanos, and 19821989 spiders, bmw e12 5 series and various 3 series cars, the datsun 280z and 280zx, all u. If in doubt, spray break cleaner on pipes, hoses, injectors, intake manifold and map sensor. Djetronic was the first of the bosch pulsed injection systems. 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. It was primarily based on patents that bosch licensed from the bendix corporation. Onsomel jetronic systems, the air temperature sen sor is visible in the air flow meter inlet. Mechanical fuel injection bosch k jetronic, bosch k jetronic fig. Cars with bosch djetronic injection, had a distributor with a threepole connector on the side. Ljetronic electronic control unit ecu, airflow sensor, system relay, fuel pump relay, lambdasond oxygen sensor, vacuum switch, electric fuel pump, coolant. Stefan aachen hebrews nt wright for everyone bible study guidesmaytag mhw5500fc 4 5 cu ft front load washer with freshred cross wsi manualjurnal penyakit jantung koroner dftoseland and.
Bosch k jetronic mechanical fuel injection troubleshooter. Kjetronic kejetronic fuel injection system repairs and. Bosch djetronic fuel injection troubleshooting and repair. Primarypressure regulator, kjetronic bosch classic. Robert bosch automotive service djetronic fuel injection. The d jetronic system developed by bosch in the early 1960s was the first massproduction electronic fuel injection system. The primary pressure regulator that is installed in the fuel distributor housing maintains a constant pressure in the fuel system of the kjetronic. The l jetronic aod ils variants are electro nically controlled fuelinjection systems solenoidopersle jetronic in iha bosch technical instruclion series. In the le jetronic system, the injection valves spray the fuel simultaneously, what is to say, they are all driven at the same time. Online library service manual d jetronic service manual d jetronic understanding d jetronic fuel injection an overview of bosch d jetronic in jaguar v12s 19751980 an overview of bosch d jetronic as used in jaguar v12s from 1975 to 1980. There are several variations of the technology offering technological development and refinement.
The djetronic system uses constant fuel pressure and flow, so that only injection duration needs to be modified to control airfuel mixture. Bosch classic, remakes, primary pressure regulator, kke jetronic. The djetronic system measures incoming airflow by monitoring. You can open them as pdf file or save them on your computer. The bosch lh jetronic electronic fuel injection system became available on the b21flh engine in 1982 and on the b23flh in 1983. Testing fuel pressure understanding djetronic fuel. File type pdf d jetronic manual injection part 2 jaguar v12 the correct fuel pressure is critical for smooth running. L jetronic 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. The airflow sensor is therefore a functional component of the k jetronic. Het kjetronic injectiesysteem is een volkomen nieuwe methode voor benzineinjectie. Today, it has been superseded by gasoline injection systems which thanks to electronics have been vastly improved and expanded in their functions. Unfollow bosch jetronic to stop getting updates on your ebay feed. This manual can be viewed on any computer, as well as zoomed and printed, makes it easy to diagnose and repair problems with your machines electrical system.
Anyhow here is the link bosch kjetronic fuel injection manual. The bosch djetronic electronic fuel injection system is composed of 3 major subsystems. 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. 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 d jetronic electronic fuel injection system is composed of 3 major subsystems. Vw l jetronic fuel injection workshop manual author. Bosch licensed the concept to many automobile manufacturers.
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. Detach the operational relay set from the relay block as well as from the safety appliance located under the steering tube. This is why engines equipped with the bosch motronic med 7 direct petrol injection system will be used for the first time in the lupo fsi and golf fsi. At the 1967 introduction, bosch called it ecgi, electronically controlled. I have been working in the motor trade for almost 10 years years now, and have been working with k jetronic for 8 of them. Bosch djetronic in jaguar v12s 19751980 an overview of. Kjetronic fuel supply an electrically driven fuel pump delivers kjetronic the fuel to the fuel distributor via a fuel system. Jetronic fuel injection this ulde is designed to be used in con unction with robert bosch jetronic service anual.
The complete system contains the following components. The l jetronic aod ils variants are electro nically controlled fuelinjection systems solenoidopersle bosch k jetronic manual mercedes. Uber 100 millionen schaltzyklen haben sie meist absolviert, wenn sie ausgetauscht werden. The le jetronic system is analog, and therefore it does not keep in memory possible damage that may occur. Another excellent source of general info on the bosch injection system from the early d jetronic electronic to k jetronic mechanical constant injection all the way to the later variations of the motronic engine management with lambda exhaust sensing to allow the system to function closedloop, is the book. Most of the information i will use comes from course notes i have from attending the ford service training college at daventry on the bosch k jetronic fuel injection system training course. Its most interesting to see how ljetronic evolved from djetronic. After a few days, you receive the repaired airflow sensor which is covered by the bosch exchange parts warranty.
Original factory and aftermarket manuals for every car, truck and motorcycle. Since this point, the k jetronic has now become particularly important with regard to. This particularly cost to travel on the way to fuel injection for efficient singlepoint injection unit passenger cars. In this system, the injection command unit controls only the fuel system. Testing fuel pressure understanding d jetronic fuel. 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. 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 primary pressure regulator that is installed in the fuel distributor housing maintains a constant pressure in the fuel system of the k jetronic. If the inlet air temperature sensor fails its resistance tests, you cant service just the sensor. Chapter of d jetronic articles by drdjet describes systematic fault finding troubleshooting and repair on your bosch fuel injection system.
Online library service manual d jetronic service manual d jetronic understanding djetronic fuel injection an overview of bosch djetronic in jaguar v12s 19751980 an overview of bosch djetronic as used in jaguar v12s from 1975 to 1980. Limiting factor was the current that the bosch 6calinder ecu could supply to injection valves. Since remakes are not always economically feasible, airflow meters that are sent to us are assessed in the bosch plant and refurbished if necessary. Combined ignition system and luel injection system molfonlc. The bosch lhjetronic electronic fuel injection system became available on the b21flh engine in 1982 and on the b23flh in 1983.
The 123ignition can be supplied with the hightension cables coming out upward rmodel or sideward amodel. So jaguar asked lucas to use bosch d jetronic and extend it for 12cyinder engines. So jaguar asked lucas to use bosch djetronic and extend it for 12cyinder engines. So jaguar suddenly had no solution and bosch could only supply a product for 4, 6 and 8cylinder engines. The most recent cars with bosch djetronic were the 1975 volvo 164e and the 1975 mercedes 450. The l jetronic aod ils variants are electro nically controlled fuelinjection systems solenoidopersle pelican parts forums. Bosch gasoline fuel injection from the year 1954 12 15. Over a century of system expertise over a century of system expertise ljetronic components kejetronic components motronic components monojetronic components intake module gasoline direct injection the bosch success story in figures more than 100 years of experience, more than 10,000 items in the full gasoline injection range. 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. Chapter of djetronic articles by drdjet describes systematic fault finding troubleshooting and repair on your bosch fuel injection system. Bosch technical instruction l jetronic pdf manufactured by the company bosch presented for you in electronic format page size 586 x 829 pts rotated 0 degrees. 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. Kejetronic bosch technical instruction series bosch, robert on.
Gasolineengine management gasoline fuelinjection system kjetronic technical instruction. Onsomeljetronic systems, the air temperature sen sor is visible in the air flow meter inlet. The d jetronic system uses constant fuel pressure and flow, so that only injection duration needs to be modified to control airfuel mixture. Vw l jetronic fuel injection workshop manual created date. Ac switch system relay pressure regu lator fuel distribution.
Bosch classic, remakes, primary pressure regulator, kkejetronic. Its wide use throughout the industry justifies its coverage in this manual. Diagnostics and spare parts from a single source product. Bosch l jetronic l jetronic rx7 brought to you by the team at created date. 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. The airflow sensor is therefore a functional component of the kjetronic. Specifically for my 1982 alfa romeo spider but this should work on any ljetronic. They have the potential to reduce fuel consumption by up to 15% compared to a similar engine with intake manifold injection. File type pdf d jetronic manual d jetronic manual understanding d jetronic fuel injection an overview of bosch d jetronic in jaguar v12s 19751980 an overview of bosch d jetronic as used in jaguar v12s from 1975 to 1980. The following table is a guide to the fuel paths marked by each blue arrow in figure 6. Bosch l jetronic fuel injection troubleshooting, maintenance. The correct owners manual, repair manual, shop manual, parts manual and more. Bosch ke3 jetronic 539 89 injection system manual 328 mondial to read online or download as pdf. A thorough understanding of the various components is required before working on k jetronic fuel systems.
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