The le jetronic system is electronically commanded and injects the fuel in the intake manifold. The technical instruction bookletfuel injection continuous injection system cisat the back of the manual describes the components and operation of the k jetronic fuel injection system in detail. 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. These early motronic systems integrated the spark timing element with thenexisting jetronic fuel injection technology.
Jetronic is a trade name of a fuel injection technology for automotive petrol engines, developed. Whereas the increase in engine power was the main object at the start of development work on gasoline injection, today we are spurred on. Combined ignition system and luel injection system molfonlc. Bosch ke jetronic manual bosch k jetronic service manual bosch k jetronic manual mercedes bosch ke jetronic workshop manual bosch d jetronic fuel injection manual manual k jetronic l jetronic k jetronic le jetronic k jetronic deutsch k jetronic german bosch manual bosch manual she bosch fsa 740 using manual bosch freezer. Bosch le jetronic bmw copyright equiptech boschlejetronic thereismuchconfusionabouttheactualtypeofinjectionsystemfittedtomanybmwmotorcarsduringtheperiod1980to. Ljetronic was often called airflow controlled afc injection to further separate it from. Kejetronic a gasoline injection system must inject precisely the correct amount of fuel for the various operating conditions. Ljetronic wikiteka, apuntes, resumenes, trabajos y. Start the engine and bring up to normal running temperature. 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. Combining this direct injection theory with electronic sensors, valves, and meters all. 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.
Inyeccion electronica l jetronic y sistemas asociados. This page was last edited on 30 novemberat sequential fuel injection and knock control. The injection has as function to provide the amount of fuel exactly dosed, necessary to. Mechanical fuel injection bosch k jetronic, bosch k jetronic fig. L jetronic the bosch l jetronic also called afcair flow controlled fuel injection was put into usspec type 4s in the last model year 1974. A thorough understanding of the various components is required before working on k jetronic fuel systems. 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. Vw ljetronic fuel injection workshop manual author. 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.
Injection bosch motronic principe injection bosch m. Injection d jetronic document pdf notices gratuites. Originally, volkswagen adapted the ljetronic for the type 4 air cooled 411 engines sold in the united states due to more. 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.
Between the years 1973 and 1995, the highly reliable, mechanical multipoint injection system k jetronic was installed as original equipment in seriesproduction vehicles. Prior to l jetronic, mechanical fuel injection systems had proven that directly injecting atomized fuel into the cylinder resulted in better engine operation. Lastwiderstand 1100ohm, 100w, regelbar 2v gleichstromnetzteil mit einstellbarer strombegrenzung max. Since their introduction, jetronic fuel injection systems have proved. 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. The following table is a guide to the fuel paths marked by each blue arrow in figure 6. Vw ljetronic fuel injection workshop manual created date. Inyeccion kejetronic electromecanica by leonardo ramirez. Djetronic ingenieria mecanica tecnologia free 30day.
The l jetronic was the first massproduced, fully electronic fuel injection system. Displaying manualsistemainyeccion l jetronicmotoresautomovilescomponentesfuncionamiento. Check the system pressure and flow with the lb2912f. Combining this direct injection theory with electronic sensors, valves. The ljetronic is an electronically con its own injection valve. Interject k jetronic servicing and cleaning procedure 1. Today, it has been superseded by gasoline injection systems which thanks to.
Select multiple pdf files and merge them in seconds. Latest trends in automotive electronic systems highway. Bosch digifant engine management system jetronic motronic. The ljetronic was the first massproduced, fully electronic fuel injection system.
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