Prior to the widespread adoption of electronic fuel injection, most carbureted automobile engines used mechanical fuel pumps to transfer fuel from the fuel tank into. Electronic fuel injection is a great means of delivering fuel to an engine. With multiport systems, each cylinder receives its own dose of fuel, and with sequential. Examples 1 and 2 below are indications of the important role the current airfuel mixture settings play in indoor air quality. Example 1 A machine with 150 cu. Contact Us Welcome Since its beginning in 1947, Hilborn Fuel Injection has grown to be a leader in the pioneering and implementation of high performance fuel. Electronic Fuel Injection System Pdf' title='Electronic Fuel Injection System Pdf' />Jetronic Wikipedia. Jetronic is a trade name of a fuel injection technology for automotive petrol engines, developed and marketed by Robert Bosch Gmb. H from the 1. 96. Bosch licensed the concept to many automobile manufacturers. There are several variations of the technology offering technological development and refinement. D Jetronic 1. 96. Analog fuel injection, D is from German Druck meaning pressure. Inlet manifold depression vacuum is measured using a pressure sensor located in, or connected to the intake manifold, in order to calculate the duration of fuel injection pulses. Originally, this system was called Jetronic, but the name D Jetronic was later created as a retronym to distinguish it from newer versions. D Jetronic was a precursor of modern common rail systems as it had constant pressure fuel delivery to the injectors and pulsed injections, albeit grouped 2 groups of injectors pulsed together rather than sequential individual injector pulses as on later systems. K Jetronic 1. 97. Mechanical fuel injection, K stands for German Kontinuierlich, meaning continuous. Commonly called Continuous Injection System CIS in the USA. Electronic Fuel Injection System Pdf' title='Electronic Fuel Injection System Pdf' />1 This guide is intended to aid the ownermechanic in understanding and diagnosing Alfa Romeo SPICA fuel supply system malfunctions. It is not a substitute for the. Windows 98 Iso Virtualbox Oracle'>Windows 98 Iso Virtualbox Oracle. K Jetronic is different from pulsed injection systems in that the fuel flows continuously from all injectors, while the fuel pump pressurises the fuel up to approximately 5 bar 7. The volume of air taken in by the engine is measured to determine the amount of fuel to inject. This system has no lambda loop or lambda control. K Jetronic debuted in the 1. Porsche 9. 11. T in January 1. Porsche, Volkswagen, Audi, BMW, Mercedes Benz, Rolls Royce, Bentley, Lotus, Ferrari, Peugeot, Renault, Volvo, Saab, De. Lorean, TVR and Ford automobiles. The final car to use K Jetronic was the 1. Porsche 9. 11 Turbo 3. Fuel is pumped from the tank to a large control valve called a fuel distributor, which divides the single fuel supply line from the tank into smaller lines, one for each injector. The fuel distributor is mounted atop a control vane through which all intake air must pass, and the system works by varying fuel volume supplied to the injectors based on the angle of the air vane in the air flow meter, which in turn is determined by the volume of air passing the vane, and by the control pressure. The control pressure is regulated with a mechanical device called the control pressure regulator CPR or the warm up regulator WUR. Depending on the model, the CPR may be used to compensate for altitude, full load, andor a cold engine. The injectors are simple spring loaded check valves with nozzles once fuel system pressure becomes high enough to overcome the counterspring, the injectors begin spraying. K Jetronic LambdaeditA variant of K Jetronic with closed looplambda control, also named Ku Jetronic, the letter u denominating USA. The system was developed to comply with U. S. A. state of Californias. California Air Resources Board exhaust emission regulations, and later replaced by KE Jetronic. First introduced in the Volvo 2. Media Center Remote Control Driver Windows 7. KE Jetronic 1. 98. Electronically controlled mechanical fuel injection. The engine control unit ECU may be either analog or digital, and the system may or may not have closed loop lambda control. The system is based on the K Jetronic mechanical system, with the addition of an electro hydraulic actuator, essentially a fuel injector inline with the fuel return. Instead of injecting fuel into the intake, this injector allows fuel to bypass the fuel distributor, which varies the fuel pressure supplied to the mechanical injection components based on several inputs engine speed, air pressure, coolant temperature, throttle position, lambda etc. ECU. With the electronics disconnected, this system will operate as a K Jetronic system. Commonly known as CIS E in the USA. The later KE3 CIS E III variant features knock sensing capabilities. L Jetronic 1. 97. Analog fuel injection. L Jetronic was often called Air Flow Controlled AFC injection to further separate it from the pressure controlled D Jetronic with the L in its name derived from German luft, meaning air. In the system, air flow into the engine is measured by a moving vane indicating engine load known as the volume air flow sensor VAF referred to in German documentation as the Luft. Mengen. Messer or LMM. L Jetronic used custom designed integrated circuits, resulting in a simpler and more reliable engine control unit ECU than the D Jetronics. L Jetronic was used heavily in 1. European cars,3 as well as BMW K Series motorcycles. Licensing some of Boschs L Jetronic concepts and technologies, Lucas, Hitachi Automotive Products, Nippon. Denso, and others produced similar fuel injection systems for Asian car manufacturers. L Jetronic manufactured under license by Japan Electronic Control Systems was fitted to the 1. Kawasaki Z1. 00. 0 H1, the worlds first production fuel injected motorcycle. Despite physical similarity between L Jetronic components and those produced under license by other manufacturers, the non Bosch systems should not be called L Jetronic, and the parts are usually incompatible. LE1 Jetronic, LE2 Jetronic, LE3 Jetronic 1. This is a simplified and more modern variant of L Jetronic. The ECU was much cheaper to produce due to more modern components, and was more standardised than the L Jetronic ECUs. As per L Jetronic, a vane type airflow sensor is used. Compared with L Jetronic, the fuel injectors used by LE Jetronic have a higher impedance. Three variants of LE Jetronic exist LE1, the initial version. LE2 1. 98. 4, featured cold start functionality integrated in the ECU, which does not require the cold start injector and thermo time switch used by older systems. LE3 1. 98. 9, featuring miniaturised ECU with hybrid technology, integrated into the junction box of the mass airflow meter. LU1 Jetronic, LU2 Jetronic 1. The same as LE1 Jetronic and LE2 Jetronic respectively, but with closed loop lambda control. Initially designed for the US market. LH Jetronic 1. 98. Digital fuel injection, introduced for California bound 1. Volvo 2. 40 models. The LH stands for German Luftmasse Hitzdraht the hotwire anemometer technology used to determine the mass of air into the engine. This air mass meter is called HLM2 Hitzdraht Luft. Massenmesser 2 by Bosch. The LH Jetronic was mostly used by Scandinavian car manufacturers, and by sports and luxury cars produced in small quantities, such as Porsche 9. The most common variants are LH 2. Intel 8. 04. 9 MCS 4. B programme memory, and LH 2. Siemens 8. 05. 35 microcontroller a variant of Intels 8. MCS 5. 1 architecture and 3. B programme memory based on the 2. C2. 56 chip. LH Jetronic 2. Volvo B2. 04. GTB2. FT engines. Some later post 1. ISO 9. 14. 1 a. k. OBD II and immobiliser functions. Mono Jetronic 1. Digital fuel injection. This system features one centrally positioned fuel injection nozzle. In the US, this kind of single point injection was marketed as throttle body injection TBI, by GM, or central fuel injection CFI, by Ford. Mono Jetronic is different from all other known single point systems, in that it only relies on a throttle position sensor for judging the engine load. There are no sensors for air flow, or intake manifold vacuum. Mono Jetronic always had adaptive closed loop lambda control, and due to the simple engine load sensing, it is heavily dependent on the lambda sensor for correct functioning. The ECU uses an Intel 8. B of program memory and without advanced on board diagnostics OBD II became a requirement in model year 1. See alsoeditReferenceseditRobert Bosch Gmb. H 1. 98. 5. Electronically Controlled Gasoline Fuel Injected System with Lambda Closed Loop Control KE Jetronic. Baggeroer, Artgur B. L Jetronic fuel injection. July 1. 98. 5. General One. File. Web. 2. 3 July 2. Lee Thompson, John De Armond 2. June 1. 99. 3. L Jetronicarchived usenet message. CB Performance Products, Inc. CNC ported cylinder heads, dune buggy parts, drop spindles, disc brake kits, turbos, electronic fuel injection efi systems, crankshafts, connecting rods and turnkey engine kits for aircooled volkswagens. Regedit Restore Vista. CB Performance. 17. N. Farmersville Blvd., Farmersville, CA 9. The CB Call Hotlines. Monday Friday 8am 5pm PST1 8. CA1 5. 59 7. 33 8. CA onlyCBs Counter Hours. Tuesday Friday 9am 5pm PST.