Bosch cis fuel injected engine cold and hot start problems. Vw ljetronic fuel injection workshop manual created date. A backbone of automotive electronics 50 years of bosch. The lele2lu jetronic system is a development of the earlier bosch l jetronic fuel injection system. All books are in clear copy here, and all files are secure so dont worry about it. The injection pump is an inline, plunger type, with an individual plunger and barrel pumping element for each engine cylinder. Gasoline engine management gasoline fuel injection system k jetronic technical instruction published by robert bosch gmbh, 2000 postfach 300220, d 70442 stuttgart. Page 20 ljetronic system diagram the next diagram is a schematic drawing of the complete ljetronics fuel injection system. Automotive equipment business sector, department for automotive services, technical publications khpdi2. Le is the german designation of the technical manual ljetronic fuel injection system porsche 912e. Between the years 1973 and 1995, the highly reliable, mechanical multipoint injection system kjetronic was installed as original equipment in seriesproduction vehicles. Flow testing a bosch cis kjetronic fuel injection system from a 1984 mercedes 380sl.
Approximately up until 1994 mechanical fuel injection systems have been installed on certain mercedes, audi, volkswagen, ford etc. Vw l jetronic fuel injection workshop manual author. Prior to ljetronic, mechanical fuel injection systems had proven that directly injecting atomized fuel into the cylinder resulted in better engine operation. Bosch l jetronic l jetronic rx7 brought to you by the team at created date. 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. 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.
Today, it has been superseded by gasoline injection systems which thanks to. Chapter of djetronic articles by drdjet describes systematic fault finding troubleshooting and repair on your bosch 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. The bosch ljetronic also called afcair flow controlled fuel injection was put into usspec type 4s in the last model year 1974. Between the years 1973 and 1995, the highly reliable, mechanical multipoint injection system k jetronic was installed as original equipment in seriesproduction vehicles. Bosch k jetronic fuel injection manual pdf document. 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 kjetronic le jetronic kjetronic german kjetronic deutsch bosch fsa 740 using manual bosch manual bosch manual. Its wide use throughout the industry justifies its coverage in this manual. The bosch djetronic electronic fuel injection system is composed of 3 major. These fuel injection systems were considered to be really reliable and trustworthy. Mechanical fuel injection bosch k jetronic, bosch k jetronic fig. Le is the german designation of the technical manual l jetronic fuel injection system porsche 912e. This diagram was adapted from the porsche 912e workshop manual and has been enhanced to provide additional information to assist in isolating fuel injection problems. A physicist, knapp had been one of the key members of this pioneering project to use electronics to control fuel injection.
The following table is a guide to the fuel paths marked by each blue arrow in figure 6. Then go to the component test instructions for directions on testing. It is the manual, including specs, and tuning information. Also visit my website for 7 free download manuals starting with this. Bosch k jetronic fuel injection service repair manual. The kjetronic is a mechanical system in which the fuel is continuously metered in accordance with the amount of air drawn in by the engine. 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. He had been assigned the task of developing the first prototypes in 1959. Vw ljetronic fuel injection workshop manual author. If in doubt, spray break cleaner on pipes, hoses, injectors, intake manifold and map sensor. This has probably already been shared, but i thought it was a cool find. The injection pump assembly incorporates mechanical. The lele2lujetronic system is a development of the earlier bosch ljetronic fuel injection system. The ljetronic was the first massproduced, fully electronic fuel injection system.
Bookmark file pdf bosch k jetronic fuel injection service repair manual bosch k jetronic fuel injection service repair manual. A thorough understanding of the various components is required before working on k jetronic fuel systems. Kjetronic fuel injection system, the ignition sys tem and the. Robert bosch ljetronic efi system using mostly common workshop tools. Read online bosch k jetronic service guide book pdf free download link book now. Download bosch k jetronic service guide book pdf free download link or read online here in pdf. For this purpose, bosch bought a mercedesbenz 300 as a company car and converted it into a test vehicle for electronic gasolineinjection systems. The bosch djetronic is an electronical gasoline injection system which was introduced in 1967. Mechanical fuel injection bosch kjetronic, bosch k jetronic fig. Bosch ljetronic l jetronic rx7 brought to you by the team at created date.
Experiencing, listening to the new experience, adventuring, studying, training, and more practical deeds may assist you to improve. Ljetronic system fuel pump n uses positive displacement roller pump. Combined ignition system and luel injection system molfonlc gaspjir. Before troubleshooting, testing or adjusting the k jetronic fuel injection system, the ignition system and the mechanical system of the.
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