Page 20 ljetronic system diagram the next diagram is a schematic drawing of the complete ljetronics fuel injection system. System overview 18 fuel system 20 operatingdata acquisition 28 operatingdata processing 38. Advanced diesel electronic fuel injection and turbocharging. 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. Introduction n this seminar will describe the l jetronic system fitted on e12s n it will also cover trouble shooting and performance tips. Jetronic is a trade name of a fuel injection technology for automotive petrol engines, developed. Bosch ljetronic fuel injection guide fiat fuel injected. Today, it has been superseded by gasoline injection systems which thanks to. Gasolineinjection systems overview 16 mmotronic engine management mmotronic. 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. This document was uploaded by user and they confirmed that they have the permission to share it. Kjetronic is the term used by bosch to describe a fuel injection system which features continuous injection.
The l jetronic aod ils variants are electro nically controlled fuelinjection systems solenoidopersle l jetronic was used heavily in 1980sera european cars, as well as bmw kseries motorcycles. The bosch djetronic electronic fuel injection system is composed of 3 major subsystems. Gasoline fuel injection system ljetronic bosch pdf download this manual may contain attachments and optional equipment that are not available in your. 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. I personally own a vintage porsche 914, and this book really helped me understand what was actually going on behind the scenes of my fuel delivery system. 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.
The l jetronic aod ils variants are electro nically controlled fuelinjection systems solenoidopersle pdf. Generally, an ebook can be downloaded in five minutes or less. The following information is intended to offer a very brief tutorial on properly. The l jetronic was the first massproduced, fully electronic fuel injection system. The l jetronic is an electronically controlled fuel injection system which has the advantage of direct air flow sensing.
The ljetronic was the first massproduced, fully electronic fuel injection system. Bosch l jetronic system on the fiat 2000cc engine the fuel injection computer is tasked with making decisions based on these inputs. Mar 24, 2016 the l jetronic is an electronically controlled fuel injection system which has the advantage of direct air flow sensing. This fuel system has been used on lots of automobiles from the 1970s and 1980s. Gtv6 and milano, however if you own any car with bosch ljetronic injection the article will. Bosch l jetronic fiat fuel injected engines guide file type. Bosch licensed the concept to many automobile manufacturers. 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.
Originally, volkswagen adapted the ljetronic for the type 4 air cooled 411 engines sold in the united states due to more. Vw ljetronic fuel injection workshop manual created date. An air flow meter, located in the air intake chamber, converts angular movement of an air baffle plate into a voltage signal, which is sent to the control unit. Get free l jetronic workshop manual saab l jetronic workshop manual saab if you ally compulsion such a referred l jetronic workshop manual saab books that will have the funds for you worth, get the extremely best seller from us currently from several preferred authors. These early motronic systems integrated the spark timing element with thenexisting jetronic fuel injection technology. 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. 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. Bosch l jetronic fuel injection guide fiat fuel injected. L jetronic adventure injectors not firing pelican parts. Gasolineengine management gasoline fuelinjection system kjetronic technical instruction. Vw l jetronic fuel injection workshop manual created date. It gives the clear idea about how to work a fuel injection system. Bosch ljetronic and motronic fuel injection systems repair guide.
The repair manual is intended for owners of seat toledo, service stations and repair shops. Jetronic manual bosch ke jetronic workshop manual bosch k jetronic service manual bosch k jetronic manual mercedes bosch d jetronic fuel injection manual. Combining this direct injection theory with electronic sensors, valves. 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. Bosch kjetronic fuel injection manual boschtech12d. Gasoline fuel injection system kjetronic gasolineengine management. The ezk spark control is the system master, if engine rotation signals are not provided to the ezk, spark will not be generated and the ezk will not provide a turnon signal to the lh jetronic fuel injection system. Ljetronic is the term used by bosch to describe a fuel injection system controlled by the air flowing through a sensor. Download file pdf bosch mono jetronic a2 2 manual forum bosch mono jetronic a2. Click download or read online button to get gasoline fuel injection system ke.
All books are in clear copy here, and all files are secure so dont worry about it. 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. The pump is capable of producing a pressure of 8 bar 120 psi with a. Mechanical fuel injection bosch kjetronic, bosch k jetronic fig.
Bosch ljetronic l jetronic rx7 brought to you by the team at created date. The task of a fuel injection system is to supply precise amount of fuel to the combustion chamber at that particular moment. Prior to l jetronic, mechanical fuel injection systems had proven that directly injecting atomized fuel into the cylinder resulted in better engine operation. 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. Automotive equipment business sector, department for automotive services, technical publications khpdi2. Chapter of d jetronic articles by drdjet describes systematic fault finding troubleshooting and repair on your bosch fuel injection systemfehlersuche. Ljetronic fuel injection systems for bmw e12s first fives. Mechanical fuel injection bosch k jetronic, bosch k jetronic the fuel pump this type of high pressure fuel pump is denoted as a roller cell pump, with the fuel entering the pump and being compressed by rotating cells that force it through the pump at high pressure.
Djetronic system uses constant fuel pressure and flow, so that only injection duration needs to be. Volkswagen type2vanagon l jetronic fuel injection bosch l jetronic fuel injection manual hence the name l jetronic. 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. One of the more commonly misunderstood aspects of electronic fuel injection efi is how to select the correct size fuel injectors, fuel pump and mass air flow maf sensor for a particular engine horsepower output. Prior to ljetronic, mechanical fuel injection systems had proven that directly injecting atomized fuel into the cylinder resulted in better engine operation. Searched and read just about every source and post on the l jetronic system and i have the pdf on the system replaced all fuel lines except center tunnel line replaced cold start valve previous one destroyed during removal of old fuel lines replaced fuel pump relay mounted under battery checked and confirmed injector ground attached on coil. Properly selecting electronic fuel injection components one of the more commonly misunderstood aspects of electronic fuel injection efi is how to select the correct size fuel injectors, fuel pump and mass air flow maf sensor for a particular engine horsepower output. System overview 18 fuel system 20 operatingdata acquisition 28 operatingdata processing 38 operating conditions 42 integrated diagnosis 58 electronic control unit ecu 62 interfaces to other systems 64 mmotronic engine management modern electronics are opening up. Compared with ljetronic, the fuel injectors used by lejetronic have a higher. Between the years 1973 and 1995, the highly reliable, mechanical multipoint injection system kjetronic was installed as original equipment in seriesproduction vehicles. The task of a fuel injection system is to supply precise amount of fuel to the. In 1990 bosch motronic fuel injection replaced l jetronic on. Fuel tank the fuel tank contains a fuel gauge sending unit, a filler tube and a fuel pump. Gasoline fuel injection system ljetronic bosch pdf.
Robert bosch gmbh, 2000 postfach 30 02 20, d70442 stuttgart. This page was last edited on 30 novemberat sequential fuel injection and knock control. Jetronic controls fuel supply while the electronic ignition system provides optimal ignition control. K jetronic is the term used by bosch to describe a fuel injection system which features continuous injection. Ljetronic electronic fuel injection only 530i 528i. As your car operates these sensors send continuous signals to the computer. Vw ljetronic fuel injection workshop manual pdf yumpu.
The bosch l jetronic fuel injection system is electronically controlled to regulate the fuel supply in relation to the air flow. Download free bosch l jetronic fuel injection free manual bosch l jetronic fuel injection free manual bosch l jetronic fuel injection 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. The bosch ljetronic fuel injection system is electronically controlled to regulate the fuel supply in relation to the air flow. Bosch ljetronic overview checking your ke jetronic fuel pressures this video is. This program has investigated advanced diesel air charging and fuel injection to improve specific power, fuel economy, exhaust emissions, and cold startability. Before troubleshooting, testing or adjusting the kjetronic fuel injection system, the ignition system and the mechanical system of the engine compression, valve timing, etc. Ljetronic is the term used by bosch to describe a fuel injection system controlled by. Haynes diagram is good, but owners manual shows more. What an electronic systemoffers is precise control over fuel delivery and air flow. 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. There are several variations of the technology offering technological development and refinement. This manual is designed to assist the technician unfamiliar with robert bosch fuel injection systems in locating faults in the ljetronic system, isolating. Page 20 l jetronic system diagram the next diagram is a schematic drawing of the complete l jetronics fuel injection system.
L jetronic manufactured under license by japan electronic. Gasoline fuel injection system ljetronic bosch pdf download. Its wide use throughout the industry justifies its coverage in this manual. The fuel pump, located in the fuel tank, pumps the fuel through a filter to the single fuel. In 1980 fiat introduced a bosch multiport fuel injection system in its vehicles. The following table is a guide to the fuel paths marked by each blue arrow in figure 6. Feb 12, 2019 bosch digifant engine management system jetronic motronic. How ljetronic worksthis basic operation is achievable without an electronic fuel injection system. Excessair factor the designation l lambda has been selected to identify the. This is an excellent book containing a detailed description of the l jetronic fuel injection system. How l jetronic worksthis basic operation is achievable without an electronic fuel injection system. A thorough understanding of the various components is required before working on k jetronic fuel systems. Read online bosch k jetronic service guide book pdf free download link book now.
Where to download 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. Ljetronic the bosch ljetronic also called afcair flow controlled fuel injection was put into usspec type 4s in the last model year 1974. L jetronic fuel injection systems for bmw e12s peter florance. Jetronic manual bosch ke jetronic workshop manual bosch k jetronic manual mercedes bosch kjetronic service manual bosch d jetronic fuel injection manual manual kjetronic le jetronic l jetronic kjetronic k. Ljetronic fuel injection systems for bmw e12s peter florance. Gasoline fuel injection system ljetronic bosch pdf download this manual may contain attachments and optional equipment that are not available in. Bosch ke jetronic manual bosch ke jetronic workshop manual bosch k jetronic manual mercedes bosch kjetronic service manual bosch d jetronic fuel injection manual manual kjetronic le jetronic l jetronic kjetronic kjetronic german kjetronic deutsch bosch manual bosch fsa 740 using manual bosch manual she bosch vp30 manual bosch cp3. Bosch ljetronic l jetronic rx7 brought to you by the team at.
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. Download bosch k jetronic service guide book pdf free download link or read online here in pdf. L jetronic is the term used by bosch to describe a fuel injection system controlled by the air flowing through a sensor. 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.
Bosch ljetronic system on the fiat 2000cc engine the fuel injection computer is tasked with making decisions based on these inputs. Gasolineengine management gasoline fuelinjection system kjetronic technical instruction published by. Licensing some of boschs l jetronic concepts and technologies, lucas, hitachi automotive products, nippondenso, and others produced similar fuel injection systems for asian car manufacturers. These inputs connect to your fuel injection computer, which is located in the interior of the car. This manual may contain attachments and optional equipment that are not available in your area. Bosch digifant engine management system jetronic motronic. Bosch l jetronic fuel injection troubleshooting, maintenance. Vw l jetronic fuel injection workshop manual author. Gasoline injection systems overview 16 mmotronic engine management mmotronic. The techniques explored include variable fuel injection rate shaping, turbocompound cooling, regenerative recirculating cold start, variable injection timing, variable geometry. Introduction n this seminar will describe the l jetronic system. Vw ljetronic fuel injection workshop manual author.
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