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5 psi). So that is also out of spec (should be less than 10% difference between idle and 2500). 5 through Model Year 1983 All these fuel injection systems are at least 20 years old and that means you need to watch out for "age related" issues when you go to repair or tune your e Sep 28, 2023 · Dt: complete cis fuel injection systemFuel system cis electronic motronic injection repair systems operation description golf gasoline autozone fig guide jetta Bosch cis fuel injection age related issues with kent bergsmaJetronic fuel injection golf system vw mk1 diagram mercedes schematic continuous braking simple bosch distributor stalls cis 1980 Mercedes-Benz 280CE - Fuel Injector Search Results. Mercedes-Benz cars have a long history with various gasoline injection systems, including exotic versions as the Diesel-like direct injection used in the Gullwing SL of the early 1950’s, spraying fuel right into the combustion chambers themselves. And this O2-sensor is for the emission control system (ECS). This site contains information on the Bosch Contunious Injection System (CIS) used on the Porsche 911 engines from Model Year 1973. Inspect and replace any injector that is leaking. I think the basics of this video apply to both. fuel injectors can not be thoroughly cleaned by normal pressure flow cleaning. If pressure is not correct, check for Jan 29, 2024 · One result of this is the fact that modern Mercedes-Benz petrol injection systems are not entirely new to many of us since much of the evolution of the new stratified charge systems can be traced back to the D-, L- and K-Jetronic, CIS, CIS-E, KE, and LU injection systems used previously by Mercedes-Benz. 5 Swivel M/F Adapter 14 Jul 17, 2019 · I'm also sure that many viewers think that these videos hold professional information & advice. Just recently we heard from a customer in England that our tester help him clean and test the fuel injectors on his late 1980's Rolls Royce engine that has Bosch C. 985 V8 engine with Bosch K Jetronic (CIS) fuel injection. They may have slightly different ignition systems (EZL) and the 560SEL would have an extra fuel pump. Volkswagen Fuel System ; Volkswagen Cabriolet & Rabbit Convertible Technical Information (Factory Fuel Systems) Porsche 911 (1973 - 1983) General Information on the Bosch K-Jetronic Injection System ; Tuning and Adjusting CIS Fuel Injection (Porsche 911) WORKSHOP MANUAL Porsche K-Jetronic (Book *. 5L 350SL: Mercedes Fuel Injector CIS Genuine Mercedes 000 078 56 23 0000785623 000-078-56-23 000. Connect the dwell meter to the pulsed side of the frequency valve or the duty cycle test terminal of the car. Cold start injector is dependent of this component. A Game Changer. 5 hours of detailed video instruction It has been over 30 years since the last Mercedes with Bosch C. Jan 6, 2015 · It has the CIS injection system with the EHA valve on the side of the fuel distributor. Mercedes-Benz fuel injection systems in the November 2001 issue of StarTuned. In this step-by-step video (using a 1990 M104 6 cylinder CIS gas engine) Kent will explain and demonstrate the following: Importance of properly working CIS fuel injectors; How to recognize if your engine has CIS injection system; How easy it is to remove this type of fuel injectors; Diagnosing potential air leaks at the injectors Dec 15, 2023 · Here's a schematic of an early vw rabbit's mechanical cis system. 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 Mercedes-Benz returned to the K-Jetronic / CIS system as it could have failures and Feb 24, 2005 · Before the heady days of EFI, Bosch produced a system called CIS Continuous Injection System AKA a carburetor on steroids: It came in several flavors, but the main differences come down to the method used to meter the fuel: Downdraft or Updraft (Updraft shown above) Downdraft CIS fuel metering: The downdraft models were more common on Mercedes Jun 1, 2021 · Your system is trying very hard to enrich the fuel at idle. 5 Swivel M/F Adapter, 16mm x 1. With these systems aging and parts needing to be replaced, it is a good time to look at the general function of this system and the various components. I would like to provide my view on this in an effort to help as much as I can. Remove the injectors from the intake manifold and with the ignition key on and engine off, press on the center plate to pressurize the system. mercedessource Product - Limited Availability. . Jul 5, 2020 · ^That is a challenge that can not be mastered. 2: CIS-E Fuel Injection Layout (300E) Fig. that it offered and several manufacturers moved to it. Fuel systems – qe elemech engineering pte ltdCis injection flow air fuel system chris mechanical sensor continuous manual Dt: complete cis fuel injection systemDt: complete cis fuel Oct 26, 2014 · The K-Jetronic WITH LAMBDA system is used on a number of vehicles from Porsche, Volvo, to VW, and of course Mercedes. Dec 21, 2012 · The goal is to run a remote turbo system on a internally standard 5. Aug 11, 2004 · These vehicles are equipped with Bosch C. Generations of Bosch CRS The Bosch Common Rail System consists of a high-pressure pump, rail, and injector. Engine temperature has no effect upon system pressure test. This fuel injector is designed for use with the Bosch CIS fuel injection system and represents a modern alternative to the original steel injectors Aug 25, 2005 · Remove the injectors from the intake manifold and with the ignition key on/engine off,press on the center plate to pressurize the system. In this 15-minute training video, Kent will show the options available to do this Sep 16, 2008 · CIS can flood if the key is on and the air flow meter (AFM) plate is lifted so the fuel pump runs, unless yours is rewired so it is on all the time. Get Yours! The largest archive technical information and web links collection on setting up and maintaining Bosch Fuel Injection Systems (K and KE-Jetronic Jun 29, 2005 · Anybody change to a newer injection system and how involved was it? My car is a 75 450SL w/ the cats right under the exhaust manifolds (very hot). Apr 19, 2024 · The Bosh CIS K-Jetronic injection system does not pulse the injectors, as the name implies CIS is a continuous injection system, the injectors never stop spraying so all concerns for timing and pulsing don't exist. Ever wonder how well your old CIS fuel injectors are working? You could run some injector cleaner through your fuel tank but Feb 24, 2010 · All CIS cars of this era have one (Volvo, SAAB), but as sold by Bosch, there is no rubber hose, just a barbed hose end. The system worked so well, in fact, that it was used in pretty much everything Volkswagen , Audi, Mercedes, and BMW put out – to name a few manufacturers – for decades. My question is, can you replace one injector without disconnecting all the injectors and removing the entire fuel rail? Feb 2, 2017 · As we progress on our journey through the 1975 Mercedes-Benz 450SL, it is important to look at the D-Jetronic or D-Jet fuel injection system. but for a good clean, these cleaners wont cut it. The engine is run with the Bosch CIS-E (KE-Jetronic) fuel injection system. May 5, 2007 · Without TPS (acceleration) enrichment you will still be miles ahead of the CIS injection system which could never get in the same ballpark of this type of fine AFR tuning. ” The Bosch CIS fuel injection system was the fuel delivery system used by Mercedes from 1976 through 1994 on most vehicles produced. This is my 3rd car with CIS-e so I understand the sanctity of the vacuum system. 3: CIS-E Fuel Injection Layout (420 & 560) OPERATION ON-BOARD DIAGNOSTIC READOUT SYSTEM Various components of the CIS-E injection system are checked by a microprocessor in the control unit. I have been having cold start problems, and big flat spots in the rev range. D. 23 | Pelican Parts It lists 1972-1989 R107, but it doesn't mention the 350 SL. As stated before, my intention for this vehicle is to get it ready for sale by next spring for extra cash to purchase a 560 SEL Jan 2, 2015 · I have a pile of new 90s, X's and etc to make all the vacuum hoses fresh and tight. I bought this as a project and the PO said "All" it needed was a WUR but since its been sitting for years I'm starting at the back and working forward. Feb 3, 2020 · Hi, unfortunately, I’m not experienced with the Ford setup, so not familiar with the wiring on those. 280E, 280CE, 280TE 1976 to 1985 with CIS fuel injection This 16-minute video will instruct you on how to replace the fuel injectors in your 6 cylinder M110 safely and efficiently. S Fuel Injection system - see models listed below: Now you can do it yourself on the bench with this inexpensive tester- Save big $$. I'm currently running an M104 MAS relay with M103 CIS-E injection system computers to achieve the 7000 RPM redline on my car. you could also have leaky injectors. The system doesn't Aug 11, 2012 · 4: Injectors leaking. Cis wiring connections1974 911 cis wiring Cis-'air flow plug'Cis injection fuel system vw schematic rabbit mechanical do corvair carburetor. 7AFR). CIS Fuel Injection Components Also called K-jetronic, this fuel injection system was used on six cylinder Porsche® after MFI, from 1973. if that is the case, then the plunger in the fuel distributor (FD) is sticking, or the cold start valve (CS) is staying on. The #1 cylinder is misfiring at idle to mid RPM. 982 motor with Bosch D Jetronic fuel injection system. Bosch Common Rail System For 280SE, 280SEL, 280SL. This can tell you if you have a weak fuel Mar 29, 2023 · The Bosch 0437502047 brass fuel injector is a popular fuel injector that has been used in many European cars from the 1980s and 1990s. 4 bar, when it should have been around 1. 5 to 1983 on the 911, and to 1994 on the Turbo Porsche models. Both systems have their own ECU and not interconnected. KE-Jetronic (CIS-E) info & advice Article «General information about the Bosch CIS-E (KE-Jetronic) fuel injection system» from the section «Power unit/Injection system «Bosch CIS-E»» car repair manuals «Mercedes-Benz W124» (W124) 1984-1995 years of release. The US Water 410-CLBOOST chemical injection system is easy to use, easy to maintain, and has a decent tank capacity, so it’s a good choice for most people and mercedessource Product - NEW VERSION 3 release. 3 V8 but it WILL NOT WORK on the 3. 6 kg/cm 2). It provides fuel enrichment during mercedessource Product - Works on Bosch MFI and CIS mechanical fuel injectors from the late 1950's to early 1990's. Aug 21, 2005 · Okay,if it's K Jet with lambda,adjust the air-fuel ratio using a dwell meter. 6)Shorted thermo time switch; Cold start injector is dependent of this component. Vw cis-e fuel injector Cis pcarmarket Jetronic fuel injection golf system vw mk1 diagram mercedes schematic continuous braking simple bosch distributor stalls cis jet car operation. It retards pre-emptively at times where it never would if it had a knock sensor like version 5 in the M104. Will NOT work on electrically operated fuel injectors. CIS-E, KE, LU and so on. Apr 28, 2021 · So I've been reading up on the CIS system on my car. CIS Fuel Injection. Nov 27, 1989 · After receiving this book, I read it cover to cover and developed a good grasp of the system as a whole, and also a fundemental understanding of each component. From what I can google the pink relay is the “fuel pump relay”, the 6 pin relay appears to be some sort of “speed sensing” relay unit, and I’m not sure what it does exactly but may shut the fuel pump off if it fails to sense ignition pulses from the engine. 7)Incorrect control pressure; 07 - Mechanical/Electronic Gasoline Injection System (CIS-E Injection) 09 - Air Cleaner; 13 - Accessory Belt; 14 - Intake Manifold, Exhaust Manifold, Emissions Control System; 15 - Engine Electrical System; 18 - Engine Lubrication, Engine Oil Cooler; 20 - Cooling System; 22 - Engine Mounts; 24 - Electrical Troubleshooting; 27 - Transmission; 30 Aug 7, 2020 · Also includes CIS Fuel Injection system (Bosch K-Jetronic C. Same test as above. PLEASE NOTE: This tester will also work with older Porsche and other European cars that used the Bosch mechanical fuel injection system from the 1960's. 5: Cold start injector leaking. Mercedes-Benz CIS Fuel Distributors. 0 litre M119 running low boost (5 to 7 psi) producing a minimum 400 crank HP ie a 20 to 25% increase with a close to standard CIS (KE-Jet) injection system. Mar 30, 2009 · The Benz injectors are a direct replacement for VW CIS injectors up to and including 1984 and with a VERY minor modification, they can be used for 85-88 CIS and CIS-e too, you just need to remove the little stainless steel cap on the end of the VW injector and press it on to the Benz injector. My car has no lambda sensors, it says on the Mercedes label under the bonnet no lambda and obviously no catalysts. Oct 24, 2009 · Well it is my personal opinion. Apr 12, 2008 · CIS Primer CIS Primer for the Porsche 911 I know most of these links are to Porsche sites but they have the same injection system as Mercedes of the same vintage New link for the 500SEC Vacuum Diagram as the old link just points to the DIY Thread and not the real posting. Over 2. 4 bar, where is the increase in pressure coming from. 5 bar when the engine is cold and around 3. Dt: complete cis fuel injection system Oct 12, 2009 · The original move to the L-Jetronic system was for the power, efficiency, etc. Now, connect the power connector from the Aux Air Device to the Cold Start Injector and turn the ignition ON and run the fuel pump. The system pressure was to spec at 5. Dit systeem is de vernieuwde versie van het K-jetronic systeem met een elektronische regel module. Its last iteration, KE-Jetronic (also known as CIS-E or Mar 31, 2010 · I found the issue! According to the Bosch manual for the CIS K system I was testing the pressure incorrectly. Mar 29, 2008 · i've used Redline S1 Fuel System cleaner (once in a while). Filter By Brands Continuous Injection System (CIS) Fuel Type: Verify of Tools for CIS-Jetronic Professionally clean, test, adjust and verify all components of Bosch K-Jetronic (1973-1994), K-Jetronic (Lambda), and KE-Jetronic (1985-1993) Fuel System. KE-Jetronic (CIS-E) fuel injection systems are not covered. If you have worked with older European cars, then you have likely encountered Bosch CIS injection. Einband mit leichten Gebrauchsspuren. My recommendation is to always send in the fuel distributor and warm-up regulator together and follow supplied instructions on the flushing procedures to ensure continued reliability from their products. Mercedes-Benz has a long history of fuel injection systems, including D-, L- and K-Jetronic, CIS and . MERCEDES-BENZ - Coverage starts in 1992. Diesel mechanics have had the During World War II, several petrol engines for aircraft used direct-injection systems, such as the European Junkers Jumo 210, Daimler-Benz DB 601, BMW 801, and the Shvetsov ASh-82FN (M-82FN). Larry Fletcher CIS Flowtech PH: 225-273-0331 Fax 225-273-0332 In this short video, I install the R107 CIS fuel injectors, the injector seals and the injector insulating sleeves. you either need to use "Seafoam" or Subaru Upper engine cleaner (effectivly the same ingredients as Seafoam). System pressure is checked with engine off. Due to its relatively small size, shipping is reasonable. 5 bar when the engine is warm. the test procedure I have says pressure at pump should be 2 - 4 bar. 3NH, CP4. Nov 26, 2017 · pointing the injector into a container (where you observe the injector nozzle) slowly increase pressure up to 65psi where the injector opens and observe the spray pattern. This kit will work on the fuel injectors from the 6. 078. These systems were introduced in the mid 1970's and continued right up into the early 1990's. ) adapters: 12mm x 1. wrote some really good information about the CIS-E fuel injection system- but you're going to need to read and spend the time understanding all the information. Cis diagramWiring schematic simple right info Mercedes wiring benz 260e 1988 diagrams cis schematicNeed a cis wiring diagram. Check Details Cis-e fuel system. [35] Dec 27, 2020 · For some time I have posted here at BenzWorld about the KE-Jetronic and how to do quick & targeted diagnosis in case of CIS-E engine issues. Shop by category Mercedes-Benz Car Service Log Books, Jan 8, 2015 · Well maintained CIS however is a very good period injection system. You can read about classic . 7 and 8. It does not work this way for fuel injection systems. 5 Swivel M/F Adapter, 14mm x 1. Het KE-jetronic systeem behoort eveneens onder de groep van CIS-injectiesysteem wat staat voor continuous injection system. com/store/bosch-k-jetronic-fuel-pressure-tester- 8 Injector holder green seals; 8 upper injector to sleeve black seals; Special cleaning cloth for injector holes; 2 short cleaning brushes; 1 pair of nitrile glooves; We welcome international orders on this kit. Commonly called 'Continuous Injection System (CIS) in the USA. Full kit is available below. You may be shocked at what you find. If you own or are restoring a CIS fuel-injected Mercedes, a pressure tester is a must-have! This complete kit will allow you to do it yourself with complete instructions. Watch the video to learn more. Set the dwell meter on the 4 cylinder scale 2. Jan 28, 2006 · Engine, Drivetrain, Fuel and Exhaust Nov 30, 2023 · Service booklet from a dealership. 5 V8 engines (those used electronic fuel injectors). Jul 24, 2009 · • Plastic injector line separators for routing the fuel lines neatly Fuel Distributor, Air Distribution and Fuel Injector Procedure: 1. 9-79. For fuel flow and fuel pressure testing on Bosch K-jetronic and KE-jetronic 6 and 8-cylinder CIS-injected engines from 1976 to 1991. !This is a test to show the injectors flowing fuel on an M102 Mercedes engine with Bosch KE-Jetronic injecti Apr 8, 2006 · RarlyL8 Motorsports / M&K Exhaust - 911/930 Exhaust Systems, Turbos, TiAL, CIS Mods/Rebuilds '78 911SC Widebody, 930 engine, 915 Tranny, K27, SC Cams, RL8 Headers & GT3 Muffler. The basic “ingredients” of a well running K-Jet system are fuel, air, and light. For our purposes, we are talking about the 1980 450SL, and the 1981 thru 1985 380SL. VOLKSWAGEN - Coverage starts in 1987; however 1987-93 models with KE-Jetronic (CIS-E) and K-Lambda fuel injection systems are not covered. 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 (73. The electronically modified Bosch KE also has this capability although it never achieved the popularity of the pure mechanical system. Verify of Tools for CIS-Jetronic Professionally clean, test, adjust and verify all components of Bosch K-Jetronic (1973-1994), K-Jetronic (Lambda), and KE-Jetronic (1985-1993) Fuel System. May 13, 2016 · Member H. 56. (256)536-9977 Service@MKExhaust Brian@RarlyL8 Sep 14, 2006 · PeachParts Mercedes-Benz Forum > Mercedes-Benz Tech Information and Support > Mercedes-Benz SL Discussion Forum: CIS System mercedessource Product - This is a do-it-yourself option. Engines with modern injection (92 onward) are much more pleasant to deal with. fuel injection was manufactured. Remove fuel pump relay. This sensor plate is attached to a fuel distributor that evenly meters the amount of pressurized fuel sent to each injector. mercedessource Product - For 1988 to 1993 M103 and M104 CIS powered cars (W201, W124, R129 and W126 chassis) Most 1988 to 1993 6 cylinder CIS fuel injection delivery (FID) systems are old and tired and have not been properly maintained. The system consists of four basic sections: 1) The K-Jetronic mechanical fuel injection system (similar to that used on the 1977, 78m and 79 450SL) Jul 14, 2013 · The early engines produced from 1989 to 92 I believe had KE Jetronic CIS fuel injection, after 92 they were made the Bosch Electronic Injection and the CIS system was no longer used. 6, the W124 260E 300E, 300CE, 300TE, the W126 300SE, and 300SEL, and the R129 300SL. Jump to Latest Follow 3K views 9 replies 6 participants last post by compu_85 Oct 16, 2014 Nov 23, 2023 · CIS -E Injection / Ignitition System. The filter keeps the system clean. pdf file) Sep 22, 2020 · Fuel Injection. Oct 14, 2014 · CIS injection system in laymans terms please. Evidently not. and the warm-up control valve) ? Applies to most 1977 to 1980 Mercedes with gas fuel injection. Jan 15, 2024 · Mercedes service CIS -E Injection / Ignition System M 102 engines Workshop / Service Manual English 392 pages Maintenance, overview, repair work original Service font from the house Mercedes Benz English ----- good condition inside ok Cover with slight signs of wear complete Original work edition - no PDF - no copy See photo We are shipping World Wide. We had this system rebuilt from CIS Flowtech. I have gotten everything running and in good order (fuel system and spark, etc. May 24, 2009 · Recommend taking care if you do this yourself. Oct 3, 2015 · "3" or "B" to cold start fitting on fuel distributor upper chamber. Mercedes-Benz CIS Fuel Injection Systems, Warm Up Regulators, Mercedes Fuel Distributor, German autos Bosch fuel distributors. Version 3 in the W201 series is just a pain in the butt with the spark situation. I wouldn't disagree with what he says. Mar 27, 2023 · A must-have for 1970 to 1993 Mercedes owners struggling with fuel injection problems: https://mercedessource. UTCIS™ Engine Management (Patent Pending) Bosch's CIS-K, or K-Jetronic, fuel injection, a variant of the popular Continuous Injection System (CIS) family, is found on many makes of vehicles including: Audi, BMW, DeLorean, Ferrari,Mercedes-Benz, Peugeot, Porsche, Saab, Volkswagon, and Volvo. Feb 15, 2017 · There was a debate once about how some people thought KE-jet was so vastly different and the naming convention of things like “control pressure” and “system pressure” mean different things in a KE-jet than a K-jet, but I disagree and believe the systems are fundamentally the same. I recommend you replace everything or you will be doi. The German direct-injection systems were based on diesel injection systems used by Bosch, Deckel, Junkers and l'Orange. Air flow sensor position indicator Coolant temperature sensor (2-pin) Altitude correction capsule. ( NOTE: Many 1986 and 187 models only had Dec 28, 2015 · The following information provides a detailed operational overview of the Bosch CIS-E (KE3) fuel injection system, as used in the 1986-1991 560SEC/SEL and 420SEL models, as well as the 300E and other cars. The fuel system in today's modern cars is advanced and has changed a lot over the years. It consists of an electronic control system that uses inputs like airflow, temperature, throttle position, and oxygen sensors to control fuel delivery and maintain proper air-fuel ratios. Remove the plastic line organizing clips, if broken/brittle Mar 31, 2020 · Over the years many forum members have worked hard to provide clarity on how the Bosch K-Jetronic fuel injection system (K-Jet) works on a W124 Mercedes Benz. mercedessource Tech help - Here are some things you should look out for! All these fuel injection systems are at least 20 years old and that means you need to watch out for "age related" issues when you go to repair or tune your engine. mercedessource Tech help - If you car uses a Bosch mechanical fuel injection system then our tester will work! Over the past few years we have heard from Porsche owners that our tester works great on many of the older models. Feb 21, 2024 · CIS Fuel Injection System - YouTube. Jul 6, 2021 · -I have not checked the fuel flow or pressure at the pump but have a question. S. I. The CIS air flow sensor plate measures the amount of air that is being drawn into the system. The only thing that you can tell the “average guy/gal“ is: “Stay away from the Lambda & EHA adjustment screws and follow the advice of someone who understands this injection system Jun 11, 2009 · The mechanical fuel injection system has recently been overshadowed by modern electronic injection, which enables the use of lambda closed loop control. We are not dealing with a carbureted system where you could turn the mixture screw left or right until you get some result. I am documenting every part of the engine mercedessource Tech help - Some will need to be "back flushed" Let Kent show you why some older C. Full six part video series included. The CIS injection system relied on a fuel pump to deliver constant fuel pressure to a fuel distributor mounted on top of an air flow meter. 5. First, the book says that you don't need the engine running, just the fuel pump. Please email me about anything you need or want to know. Then from 1976 to 1980 they included the M117. Stricter emissions standards were at least Feb 3, 2020 · First is to test the Cold Start Injector. 3-135 to check the injectors. 5)Cold start injector leaking; Same test as above. heated Overvoltage protection relay CIS-E control unit connector) Micro switch, deceleration shut off. and V/8 engines. Why buy The CIS meters the amount of fuel provided to the cylinders as a function of the air drawn into the engine. There is no guarantee that back flush cleaning will restore every old gasoline mechanical fuel They have even been able to supply BOSCH/Mercedes OEM parts new that are no longer available (CIS pressure regulators). Great outline and history of fuel injection systems. Apr 8, 2013 · I drilled a hole in the bottom of the Hersheys can and installed a barbed fitting with JB Weld. Jul 2, 2013 · A quote from Tony (boyt911sc): "But the most blatant suggestions in the CIS troubleshooting threads is adjusting the fuel mixture for starting or running problem/s. mercedessource Product - For 1976 to 1993 Mercedes with gasoline fuel injected 4, 6, and 8-cylinder engines To do proper system testing on CIS fuel injection, you must find a way to get the fuel pump or fuel pumps to run continuously without the engine running. The development of direct injection was certainly . I do have all the crankcase breather hoses, some of the air intake stuff, but not the Y or the tree. They also have a great web site for CIS information just look at either the FAQ's or the Blog. You saw CIS injection on the 4, 6, and 8 cylinder engines that Oct 12, 2022 · About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright Mar 25, 2010 · The winner is Napa because it will be there Saturday morning. A picture of one is at: Mercedes Benz 380SL - Fuel Injection - Page 3 By 1977, Mercedes-Benz replaced D-Jet with Bosch’s mechanical K-Jetronic (also referred to as CIS or “Continuous Injection System”). I hope this helps other fuel injection system newbies like myself. We can exchange many of the Bosch warm up regulators and fuel distributors for a rebuilt unit from our shelf! Nov 6, 2010 · The fuel injection system used on all Mercedes-Benz gasoline engine vehicles uses a basic CIS injection system for fuel delivery and electronic controls for mixture correction functions. Jun 8, 2014 · The CIS injection system was Mercedes best by far and is easy to work on for the DIYer, not to mention the better quality parts and the things that went missing on the later models. Mercedes kept the CIS system longer than most manufacturers and eventually dropped it when they fell in love with EFI again. if the system pressure is 6. 5 and 4. Fig. However, I was having some issues with my FD and decided to go down the path of doing a rebuild on my Kjet car (m116 from 1984 - earlier fuel system, replaces the EHA with a warm up regulator). I thought I would everything needed. System pressure should be 76. Around 20% duty (Mercedes 80%) and 33% duty (Mercedes 67%). After rebuilding fuel distributor many months ago I never had time to fine tu Feb 26, 2010 · I finally bit the bullet and purchased a fuel injection pressure gauge and checked the pressure per section 073-120 of the Mercedes manual. 2. You may not know this but fuel injection has been around since the 1950's with electronic fuel injection used widely on European cars starting around 1980. 1: CIS-E Fuel Injection Layout (190E/16) Fig. By 1977, Mercedes-Benz replaced D-Jet with Bosch’s mechanical K-Jetronic (also referred to as CIS or “Continuous Injection System”). See application notes below: Works on all models from 1977 to 1993 with the Bosch C. 6 days ago · The SpringWell CIS chemical injection system has great accompanying systems, as well as a large tank capacity and GPM, making it a great option for large homes with 6 or 7 bathrooms. Apr 13, 2015 · This coolant temp. it could fill the cylinder and cause hydro lock. Yes digital fuel injection is superior to CIS in essentially every respect. Bridge terminals No. CIS would be real lucky to get with in 4 or 5 points of stoich (14. Get Yours! The largest archive technical information and web links collection on setting up and maintaining Bosch Fuel Injection Systems (K and KE-Jetronic Apr 7, 2024 · Every injector is always injecting in CIS, even if the cylinder isn’t on the intake stroke, it’s like it’s dumping fuel in the intake plenum waiting for the intake valve and once the intake valves opens it sucks all the fuel and air mixture into the cylinder at once. There is something inside the fuel injector that will need to be back flused with cleaning fluid. com/store/1978-1980-w116-r107-c107-v8-fuel-delivery-overha The R107 450SL Convertible roadster fulfilled the luxury sports car market for most of the 1070’s. M 102 Engines. Aug 6, 2023 · In 1994 Mercedes Benz switched over from a CIS (Continuous Injection System) to an electronic port fuel injected engine. Mechanical fuel injection, 'K' stands for German: "Kontinuierlich", meaning continuous. Alle standaard onderdelen (zoals benzinepompen) zijn leverbaar, helaas zijn er nog geen […] Aug 23, 2018 · Never ask a Mercedes Engineer why. If you own a 1976 to 1993 Mercedes gas engine with this type of fuel injection, you may have difficulty finding someone to work Apr 3, 2007 · The Gen 2 500 and 560 have the exact same fuel injection system which is called KE-Jetronic (CIS-E). Jan 3, 2009 · I own a 1988 Mercedes Benz 230TE Estate. 5 Swivel M/F Adapter & 1/4 BSPT Swivel M/F Adapter Services a wide range of BMW, Mercedes, VW/Audi and others mercedessource Product - 6 videos total covers both K-jetronic and KE-jectronic fuel injection system theory and testing. 2 - 6. So far I have found the following fualty parts, Fuel Presure Regulator, Fuel Pump Relay, Vacuum Advance Unit, the cold start CIS Fuel Injection System -70's or 80's Mercedes and Porsche mostly use this style of fuel injection system. I want to change the steel lines because I don't like them, they are a PITA. This should cause power to open the injector and spray fuel. CIS-E injection ignition system engines 102 Skip to main content. Bosch introduced the CIS-E (Electronic) fuel in jection system in the early '80's on some Audi, Volkswagen, andMercedesBenzmodels, as well as other European cars. " Dec 23, 2023 · Would these injectors work for a 1972 4. Most of the injection systems listed Nov 17, 2005 · Hi 560, The CIS-E refers to the type fuel injection system: Contious Injection System - Electrically controlled. I have verified that there is spark and compression so I want to replace the fuel injector for this cylinder. Label or mark the fuel lines by injector/cylinder number with tape 2. Mar 8, 2008 · CIS Injection problem Jump to Latest Follow 3K views 1 reply 2 participants last post by Donis2 Apr 5, 2012 If it has been sitting and won't start expect to deal with the FID. It was fairly prevalent back in the ’70s and ’80s on cars from VW, BMW, Audi, Porsche, Mercedes-Benz, Volvo, Saab and even Ferrari. The “average guy/gal“ will never invest the mental discipline necessary to understand this injection system. I do have the nylon fittings. Function diagram, CIS-E gasoline injection system B 2. It needs to be a fine even mist Below 65psi the injector needs to close shut and not dribble Looks like a lot of yours are toast anyway but worth testing them all. With these old gas fuel injectors, sometimes you just have to "back flush" the insides to restore them to peak performance. AUDI - Coverage starts in 1990. All units are rebuilt to Bosch factory specifications and carry a 2 year warranty. The Bosch KE Jetroninc variant specifically. 1987-89 Bosch CIS and CIS-E fuel injection systems are not covered. I do know they did change the opening pressure [higher] of their injectors to allow a better atomization. 4-5. They also changed the seal inside for longevity. I have lots of parts including exchange reconditioned Fuel Distributors and Warm-Up Regulators available, Auxiliary Air Slides, Auxiliary Air Valves, D-Jet Manifold Pressure Sensors, Mechanical fuel injection pumps and much more for your classic European car. Inspect and replace any injector that is leaking. This can not be done by just using the ignition key. Dec 12, 2014 · How Volkswagen's Continuous Injection System (CIS) Works Early fuel injected Volkswagens have the most ingenious fuel delivery system I've ever seen. ) adapters from CTA 3422: 12mm x 1. I've replaced the fuel pump with a new Bosch unit, new filter and new injectors. Build an ACCURATE tester and save $$. Remove fuel lines, start with cold start injector, catch all fuel with rag 3. This is an in-line pressure tester which indicates problem sources - control pressure regulator, fuel distributors or other specific fuel injection components that may require replacing. Elec mirror, console light, locking door cubbys, light beam adjustment plus it had more BHP and it doesn't have the bumper cover that looks like a droopy lip after May 24, 2024 · Mercedes service CIS-E Injection / Ignition System M102 engines Workshop/Service Manual English 392 pages / pages Maintenance , overview , repair work Original service letter Mercedes Benz English good condition inside ok Binding with slight signs of wear completely Original factory edition - no PDF - no copy See photos We are shipping World Wide. Thechange to CIS-E followed the normal evolution of the fuel injection systems wehad become familiar with—CIS, CIS-Lambda, then CIS-E. I stopped posting in BW’s R107, W124, W201 forums quite a while ago because there was (and still is) simply too much wrong info/advice posted and, unfortunately, no one there corrects it. This means an engine control unit electronically grounds the individual injectors that will then spray the correct amount fuel into the engine in very precise amounts. com for instructions on placing an international Feb 3, 2020 · In more elaborate terms, KJet is a Continuous Injection System (commonly called CIS), where unlike later L-Jetronic or “standard” Electronic Fuel Injection, the injectors do not pulse open and closed; once the system pressure is high enough they all inject a constant spray of fuel, in all cylinders at once, which is varied in volume by the Jan 9, 2013 · 1986 fuel systems mercedes-benz cis-e electronic control system DESCRIPTION The fuel injection system used on all Mercedes-Benz gasoline engine vehicles uses a basic CIS injection system for fuel delivery and electronic controls for mixture correction functions. The book also focused on specific injection models with easy to comprehend descriptions and reviews of service requirements. The document summarizes the 1986 Mercedes Benz CIS-E fuel injection system. Email sales@mercedesource. 8 psi (5. This is the black rectangular box on the side of the fuel distributor controlled electronically. Detect bad fuel pumps, bad pressure regulators, leaking injectors and clogged fuel filters Includes 3-1/2" (90mm) gauge with dual calibration (5-145 PSI / 25-1,000 kPa), hose assembly, and adapters Also includes CIS Fuel Injection system (Bosch K-Jetronic C. Im debating upon replacing the whole motor and going to a motor from a 77-80 450 engine which will not have cats right under the manifolds and better Fuel systemFuel system Cis system injection fuel continuous description systems fig autozone repair gif supplyRepair guides. 6: Shorted thermo time switch. Injector CP3. US cars produced from 1972 through 1975 used the M117. I will not have critical pieces of the fuel delivery system non-Mercedes-Benz. S Fig. I follow the shop manual, section 07. This is done by removing the injector from the manifold, and directing its nozzle into a container. Dec 23, 2023 · It’s a system widely referred to in history as one of the first precursors to modern electronic fuel injection in cars today. Sep 27, 2018 · Technically they are interchangeable and the only difference I can tell with the units is that the M103 MAS relay has a lower redline than the M104 relay (7000 RPM). But having been involved as a young design engineer in Mercedes' CIS-E engines in the 1980's, I assure this forum that CIS-E related YouTube videos often hold incorrect information & inadvisable advice. sensor (40*C) is for the electronic idle speed control system (EISC). Throttle valve switch, idle and full load contacts Ground, battery Jun 3, 2010 · I am working on a 1995 E320. If you own, plan to own, and want to enjoy driving your old CIS fuel-injected Mercedes, Kent highly recommends you learn to do a full fuel system flow and pressure test. a game changer. So it is more centered when the engine is at roadway speeds. Dit betekend dus dat de brandstof continu wordt ingespoten in de inlaatcollector. Nov 26, 2018 · Good morning all - I have been working to get my 79 450SL with CIS K-Jetronic started after a couple years in storage. These include the W201 190E 2. K-Jetronic Fuel Injection Systems. Link to kit: https://mercedessource. The system operates in a default or "limp-home" mode if the electronic control unit malfunctions. The little jar in the last shot is filled with a mixture of super unleaded and Techron injector cleaner. ), but I am having problems with the initial setting on the fuel distributor. Find replacement Mercedes fuel system parts by looking through our growing online parts catalog. A new filter must be installed and system bleed before installing a new rebuilt distributor. 4 bar, but the control pressure was also at 5. 1. We are talking about tuning a few tenths of a point of AFR. So, I pulled the fuel pump relay and jumpered the connection so the pump would continuously run. For both K-Jetronic and KE-Jetronic 6 cyl. guter Zustand. on a CIS system I would have expected the pumps to maintain the higher pressure. Mar 7, 2019 · Pretty much everything that HD says is honest and gold. 75bar Brian B. Feb 12, 2010 · I did get share authorization from the author of the CIS Rebuild document since he wrote a copyright into it and he also recommended CIS Flowtech for Fuel Distributor Rebuilds. 2 Metering unit You can rely on the world’s leading diesel system supplier for passenger cars, off-highway, and commercial vehicles. The Gen 1 500 motor used CIS fuel injection which is 100% mechanical and uses a warm up regulator for enrichment. 350whp @ 0. All 4 of these are designed for our CIS systems with the proper fittings and shut off valve. Aug 11, 2015 · Finally tuned my 91 Mercedes 500SL Bosch CIS KE-Jetronic fuel injection system. I just recycle it. but a few things for me: 1. Their first EFI system sucked bad. Nov 19, 2014 · 4) Injectors are all new - as you may recall I originally replaced injector 1 thinking it was leaking and dumping too much fuel into cyl 1 - obviously the injector *may* have been damaged or weak, but the real culprit here is the fuel distributor. More importantly, it provides a complete battery of tests for each component of the Dec 10, 2007 · What are the fuel pressure readings I should get on a 1979 450sl with bosch K-jetronic fuel injector system;-"Key on", and "running" (taken at the cold start fuel line)? - Run control pressure on a cold motor and after warm up (taken between the fuel dist.
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