Electrical and vacuum operated regulators and switches complete the assembly. Certain operating conditions make it necessary to correct the mixture accordingly. 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. In addition, the technology delivers the minutest pressure difference valves. Fuel injection was kjetronic, the compression ratio is 9. Page 1 the engines fuel requirements a sparkignition engine needs a particular airfuel ratio in order to operate. Bosch technical instruction k jetronic pdf contains help for troubleshooting and will support you how to fix your problems immediately. The warmup regulator, also called the control pressure regulator, lowers the control pressure of the k jetronic when the engine is cold. However, failure of the system left the car dead, and for that reason primarily some european manufacturers with reputations of durability and dependability including volvo and mercedesbenz returned to the kjetronic cis system as it could have failures. Kejetronic lambda control duty cycle adjustment page. Download file pdf vw k jetronic engine vw k jetronic engine mk2 golf kjet injector testing quick video to show how to test and adjust the fuel delivery from a bosch kjet metering head on a mk2 golf gti 16v. Bosch technical instruction k jetronic pdf manufactured by the company bosch presented for you in electronic format page size 592 x 841 pts rotated 0 degrees.
Continuous injection system found on most late model european cars and volkswagen models assembled in the u. It only appeared late in the development of the motorcar because the injection amounts are so small. Visit the colleague download that we have provided. Introduction page 4 chapter 1electricity and electronics page 5 chapter 2emissions page 26 chapter 3toolspage31. This success is a result of the advantages which fuel injection can offer when considering todays demands for economy, performance, and cleaner exhausts. Since the electric fuel pump supplies more fuel that is used by the engine, a valve in the pressure regulator opens and returns this excess fuel to the fuel tank. The primary pressure regulator that is installed in the fuel distributor housing maintains a constant pressure in the fuel system of the kjetronic. You can along with find the new haynes repair manuals for jetta 2 k jetronic compilations from on the order of the world. These fuel injection systems were considered to be really reliable and trustworthy. I think kjet has some advantages over electronic in performance applications because of the qualityshape of the fuel spray as a result of the design and pressures of kjet. The 1982 version used lejetronic, the 731 cylinder head, a compression ratio of 9. Early fuel injected djet v8 engine running not so good initial troubleshooting there are a number of issues on this early electronic fuel injected v8 engine, but i found a problem no.
Bosch kjet mixture setting posted on august 31, 2009 by larry fletcher comments off on bosch kjet mixture setting after assembly of the fuel system, run the fuel pump and depress the air flow sensor plate for a couple of seconds to bleed air out of the fuel distributor. There are several variations of the technology offering technological development and refinement. A thorough understanding of the various components is required before working on kjetronic fuel systems. Long story short, i had a long dinner with a couple of specialists. Perfect for all diy persons your doityourself specialist for service manuals, workshop manuals, factory manuals, owner manuals, spare parts catalog and user manuals. Since their introduction, the jetronic fuel injection systems have proved themselves millions of times over under the harsh conditions of everyday driving. Fuel system kjetronic lambdathis page is dedicated to checking and, if need be, adjusting your kjetroniclambda fuel injection system. Books on the cis system generic and porsche specific these books are recommended reading for cis familiarization bosch pdf. Bosch k jetronic service guide pdf introduction this bosch k jetronic service guide pdf pdf document begin with intro, brief session until the indexglossary page, read the table of content for. When off for 5 minutes after running for a while to full heatup, it fires right up. Today, it has been superseded by gasoline injection systems which thanks to electronics have been vastly im proved and expanded in their func tions. There is no scan tool to tell you where to look for the fault. A thorough understanding of the various components is required before working on k jetronic fuel systems. 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.
Do not try to correct engine trouble by making simple adjustments to the idle speed or the idle mixture co. There is a download available at ferrari 400 k jetronic downloads. Kjetronic troubleshooting from a couple of specialists. The primary pressure regulator that is installed in the fuel distributor housing maintains a constant pressure in the fuel system of the k jetronic. Ferrari 400 k jetronic downloads ferrari 400 parts. Most of the time we deal with the exchange of mechanical injection kjetronic kejetronic djetronic for modern electronic injection controlled by our polish piggyback. Kjetronic fuel injection tester w case sgt 33800 packed in a durable, plastic molded storage case with carrying handle. The key is to advance the timing to the peak power point. Fuel system k jetronic lambdathis page is dedicated to checking and, if need be, adjusting your k jetronic lambda fuel injection system.
Bosch k jetronic fuel distributor quick look whilst ive. The warmup regulator, also called the control pressure regulator, lowers the control pressure of the kjetronic when the engine is cold. The bosch kjetronic fuel injection system is a continuous fuel injection system which consists of mechanical type fuel injectors, a fuel distributor unit, operated by a sensor plate, and a control valve. This further deflects the control plunger in the fuel distributor and correspondingly supplies additional fuel. At the time the owner could only describe it as possibly a tester for german ecus but i recognized the wiring harness connector and did some research into the motronic connector to. Approximately up until 1994 mechanical fuel injection systems have been installed on certain mercedes, audi, volkswagen, ford etc. One guy helped engineer the 190e, one guy worked on d, k, kejetronics at bosch, and they other guy my father was a technician at vw and taught the jetronic course.
The title of this pdf download which mentions the number 1 987 722 101 on the last page. The smaller files you can find on the download page. Kjetronic hotstart problem on m110984 the car always starts well from cold, 1st or 2nd turn and it fires right up. Mechanical fuel injection bosch kjetronic, bosch k jetronic fig.
Before troubleshooting, testing or adjusting the kjetronic fuel injection system, the ignition system and the mechanical system of the engine compression, valve timing, etc. Im planing to make a pdf manual about the kejetronics lambda control after i will have added a number of further things about this topic here in this thread. Chapter b bosch kjetronic fuel injection part 2 chapter b bosch kjetronic fuel injection part 3. Where to download d jetronic manual d jetronic manual 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. The following table is a guide to the fuel paths marked by each blue arrow in figure 6. Bosch k jetronic service guide pdf by alvinclark4261 issuu. Home ferrari 400 ferrari 400 parts shop bosch k jetronic webshop ferrari 400 pictures bosch downloads ferrari downloads k jetronic downloads site. You can environment appropriately satisfied once creature the fanatic of this online library.
The warmup regulator is installed on the engine to absorb its heat. The kjetronic is the first mechanicalhydraulic and continuous fuel injection. The details in this file refer to ke jetronic 19841987 on the us coupe and 4k the 1987. The fuel flows through the open section of the slits to the differential pressure valves. Kjetronic fuel injection tester with case ta 33865. Kjetronic system overview the kjetronic is a mechanically and hydraulically controlled fuelinjection system which needs no form of drive and which meters the fuel as a function of the intake air quantity and injects it continuously onto the engine intake valves. Fuel pressure testers free delivery possible on eligible purchases. 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. 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. Download file pdf l jetronic workshop manual saab l jetronic workshop manual saab bosch kjetronic fuel distributor seal replacement video to show how i replaced the seals in my mk2 golf 16v kjet fuel distributor. I am also addressing the basic settings involved in adjusting the fuel mixture here. The original move to the ljetronic system was for the power, efficiency, etc.
They patched it with kejetronic, with the oxygen sensor, but eventually, they all moved on to ljet. Mechanical fuel injection bosch k jetronic, bosch k jetronic fig. The title of this pdf download which mentions the number 1 987 722 101 on the last page in the right bottom corner is ke jetronic book. 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. Valve on a 1980 mb 500 sel with bosch k jetronic mechanical fuel injection. This manual will describe the kjetronics function and its particu lar features.
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