Jul 22, 2019 ke3 jetronic pdf mercedes suggests that special tools are required to adjust the mixture on the bosch ke3 jetronic. Unless otherwise stated, the above are all employees of robert bosch gmbh, stuttgart. 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. Bosch kejetronic overview mercedesbenz forum benzworld. Apart from minor alterations the basic principles of the hydraulics and mechanics used on the k jetronic system are unchanged on the ke jetronic system. Jetronic controls fuel supply while the electronic ignition system provides optimal ignition control. D jetronic did not have oxygen sensors or closeloop operation.
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. This common rail system ran at constant pressure and the injector pulse duration was changed according to intake vacuum, barometric pressure and engine temperature. 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. After a few days, you receive the repaired airflow sensor which is covered by the bosch exchange parts warranty. Ke3 jetronic pdf mercedes suggests that special tools are required to adjust the mixture on the bosch ke3 jetronic. Bosch kjetronic fuel distributor seal replacement duration. There were three iterations of it in audis simplest kejetronic, with vacuum ignition or with electronic ignition, ke3jetronic equipped 10v. This particularly cost efficient singlepoint injection unit made it feasible to equip small vehicles with jetronic.
The airflow sensor is therefore a functional component of the k jetronic. The mechanical fuel injection system has recently been overshadowed by modern electronic injection, which enables the use of lambda closed loop control. Bdom mrrying out any te ensure that the battery h in r fully charged condkion. Or lets have a look at one more version bosch cise continuous injection system electronic. The k jetronic pump requires no form of drive and one of its features is that it can meter the fuel as a function of the intake air quantity.
The air drawn in by the airflow sensor changes the position of the airflow sensor plate in the airflow sensor. In 1982, the k jetronic model became available in an expanded configura tion, the ke jetronic, including an electronic closedloop control circuit and a lambda oxygen sensor. With the k jetronic, the preparation is performed by the mixture control unit which consists of a fuel distributor and an airflow sensor. Bosch kejetronic system description fuel injection. The mechanical portion of the cise system consists of the mixture control unit air flow meter and fuel distributor, primary pressure regulator, fuel accumulator, cold start valve, fuel injectors, pumps, filter, lines, tank and fuel cooler. Kejetronic the kejetronic is a mechanicalelectronic injection system based on the kjetronic.
Breitling bentley special edition, british planning 50 years of urban and regional policy, and many other ebooks. The key is to advance the timing to the peak power point. The airflow sensor is therefore a functional component of the kjetronic. We have made it easy for you to find a pdf ebooks without any digging. It is a socalled hybrid a mixture of mechanical and electronic injection systems. 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 djetronic electronic fuel injection system is composed of 3 major. Bosch ke3 jetronic 539 89 injection system manual 328 mondial to read online or download as pdf. Mechanical fuel injection bosch k jetronic, bosch k jetronic fig. The details in this file refer to ke jetronic 19841987 on the us coupe and 4k the 1987. This synthesis, comprising the mechanical basic functions coupled with electronic adap tation and opti mization functions, is the kejetronic. Bosch kejetronic system description fuel injection engines. Offer drawing part offer drawing assembly pn 1 928 404 927. Bosch kjetronic fuel injection manual boschtech12d.
R shoutd be noted that all components of the system except the injectors can be tested on the vehicle. This synthesis, comprising the mechanical basic functions coupled with electronic adap tation and opti mization functions, is the ke jetronic. The following table is a guide to the fuel paths marked by each blue arrow in figure 6. Bosch k jetronic fuel injection manual pdf document.
Digital data processing and microprocessors make it possible to translate extensive operating. The control plunger of the fuel distributor is correspondingly deflected by means of a lever system. Bosch ke jetronic system the bosch ke jetronic fuelinjection system is fitted to escort rs turbo models and is a further development of the k jetronic system. Bouquets from beads dover craft books, brand valued how socially valued brands hold the key to a sustainable future and business success, and many other ebooks. The electronically modified bosch ke also has this capability although it never achieved the popularity of the pure mechanical system. Further technical information can be found in the kejetronic booklet. Home video course bosch ke3 jetronic 539 89 injection system manual 328 mondial read online available as pdf. Porsche 911 s warm up regulator recondition and modification duration. It is mainly controlled by the airflow meter and responsible for the fuel metering of the. 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. Basically, it is pretty similar to the kjetronic with some changes and modifications.
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. Ive left the 190e300e sections as they may be of use to the euro 300sl m103 guys. I am also addressing the basic settings involved in adjusting the fuel mixture here. Detach the operational relay set from the relay block as well as from the safety appliance located under the steering tube. Pmcedum 1 fuel pump andor prepurnp not operating correctly. Bosch licensed the concept to many automobile manufacturers. Aug 11, 2014 1 kjetronic van bosch mb rc 107 club nederland2016920 kjetronic van bosch paciteit als bosch hdi edc15c2 injection system bosch k jetronic fuel injection manual. The djetronic system measures incoming airflow by monitoring.
A computer controls the injection and ignition systems with reference to shared optimization criteria. Kjetronic 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 kjetronic since its introduction, the kjetronic gasolineinjection system has proved itself in millions of vehicles. Continuous injection system found on european cars and volkswagen models assembled in the u. At the start of the decade, you could find the bosch d jetronic on many volvos and vws.
Since remakes are not always economically feasible, airflow meters that are sent to us are assessed in the bosch plant and refurbished if necessary. Airflow calculation via throttlevalve angle and engine speed. With the kjetronic, the preparation is performed by the mixture control unit which consists of a fuel distributor and an airflow sensor. The primary pressure regulator that is installed in the fuel distributor housing maintains a. Apr 28, 2016 k jetronic fuel injection system k jetronic is a mechanically and hydraulically operated fuel injection pump, introduced by bosch gmbh in the year 1973. Kejetronic a gasoline injection system must inject precisely the correct amount of fuel for the various operating conditions. Jun 17, 2019 ke3 jetronic pdf mercedes suggests that special tools are required to adjust the mixture on the bosch ke3 jetronic.
Info free download books bosch ke jetronic shop service repair workshop manual torrent printable 2019 you know that reading bosch ke jetronic shop service repair workshop manual torrent printable 2019 is useful, because. Additional electronics record a variety of measurement variables in the engine, thus permitting optimization of fuel requirements and emission quality. The fuel distributor is the central element of the. Turn on ignition and check voltage between terminal no. A thorough understanding of the various components is required before working on k jetronic fuel systems. Reproduction, copying, or translation of this publication, including excerpts.
A mechanical hydraulic injection system provides the basis for the bosch ke jetronic cise fuel system. Scribd is the worlds largest social reading and publishing site. Find great deals on ebay for bosch cis in fuel inject. Kjetronic is the term used by bosch to describe a fuel injection system which features.
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