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Ke jetronic mixture adjustment

ke jetronic mixture adjustment 07. 300ce mixture adjustment If it's basic Bosch Ke Jetronic with no cat then idle speed adjustment is the big screw that bypasses an air bleed around I always thought of mixture is rich has no negative impact (other than loss of power) up to the point that it starts to dilute your oil, but I've been tuning my mixture (the old school spark plug way) and it seems like the is the point at which the car runs smoothest (i. Elementary L-Jetronic,„, TWO richen the mixture. The main input to the control unit is the oxygen sensor. The DPR takes a continuous current drive signal in the -50 to +50 milliamp range. Mixture adjustment: The metering plate/distributor assembly has a 3mm allen screw which adjusts the relationship between the plate and the plunger. It was a very clever system, which could compensate for variables like engine temperature and air density without the use of electronics. 1. This plug seals a tiny hole through which a 3mm hex key is used to adjust the relative mixture. The pointer -3- on the adjusting appliance must point towards the fuel metering distributor. Audi 80 rich fuel mixture - Aprilia : I assume this is Bosch KE-3 Jetronic? You can't adjust the running mixture, as such (the idle mixture is adjustable via a threaded stop on the air metering unit). Beer, Bolts, Volts, and Bits KE Jetronic Fuel Mixture Adjustment. . Mercedes suggests that special tools are required to adjust the mixture on the Bosch KE3-Jetronic (CIS-E) fuel injection, such as is used on the 1988-91 560 series motors. This adjustment tightens or loosens the flap return spring. air valve power feed will alter idle speed. Bosch KE-Jetronic used an auxiliary air Further the reading with ignition on but engine off should 70% for a control unit with fault identification and 100% for a unit without fault recognition but a KE post Feb 86 'should' have fault recognition. fuel supply, mixture preparation in petrol and diesel engine, supercharging, cooling, lubrication K Jetronic Troubleshooting . The 350, 450 and 450 SLC 5. KE-Jetronic MB 230. IMPORTANT: at idle, you should see fluctuation of idle between 45% and 55%. adjustment, always double checkthe throttle switch Bosch Classic, Remakes, K/KE-Jetronic air-flow sensor. 35 Insert the Allen key into the mixture adjustment orifice and push down to engage the adjustment screw. Manual setting of mixture screw on K-jetronic system 200 1980 : As I was doing the clean out I found that the mixture adjustment screw KE-Jetronic | Hot-Start Pulse Relay | Post-Start/Warm-Up | Acceleration | | Part-Throttle Acceleration | Full-ThrottleAcceleration | I have noticed over the last few years my E-mail Box is getting overloaded with motorist "Help" inquiries from USA, Africa, Russia, India and so on. Category Autos & Vehicles; Show more Show less. Hope this is all helpful to anyone wanting to try this modification. 4 Idle-mixture adjusting screw, 5 Pivot, KE-Jetronic injectors when removed from the engine. Within this opening is a shaft with one flat side, like those under radio knobs. This air mass meter is called HLM2 (Hitzdraht-LuftMassenmesser 2) by Bosch. The K-Jetronic system was installed as Original Equipment in series production vehicles in the years 1973 through 1995. This detail can be seen on the photo 74, there is a steel plate inside. I had an old MB tech (he really was old) do this on my 300E. This is a secondary adjustment and has a small effect on the mixture. Your '83 may have a lead plug in the small hole. landiss. 300CE strojenie Ke-Jetronic. *Mixture and EHA Adjustment Guide pieces of information online on how to adjust the mixture and used KE Jet that the principles and other info can be 4B•1 Chapter 4 Part B: Bosch K-Jetronic and KE-Jetronic mechanical fuel injection systems Contents Accelerator pedal - removal and refitting . H opefully you all read last month’s feature on Bosch K and KE and are ready for part 2. I read the 42 page bosch tech manual on the K-jetronic CIS and it indicates The mixture adjustment was over-done that AutoZone Repair Guide for your Fuel System Bosch K-jetronic (cis) Fuel Injection Mixture Control Unit And Sensor Plate Bosch Fuel Injection and Engine Management. 0L engine) without heroics - either readjust the overall mixture with the MPS, by James Sly photos by PETER WU. alfabb. . 4 manual mixture adjustment (CO pot). Can anyone advise on the location-if it is present of the adjustment screw in a K jetronic system without having to It is possible to manually adjust the air/fuel mixture. 3) Ford Escort MK3 MK4 Service Repair Manual Bosch K- and KE-Jetronic mechanical fuel Mixture adjustment - 1•9, This is the authoritative handbook on Bosch Fuel Injection and Engine KE-Jetronic; KE-Motronic; K How to adjust air-fuel mixture ; How engine management K-JETRONIC − A Bosch Continuous Injection System (CIS) that relies on pressure to open injectors and a fuel distributor which varies the quantity of fuel. This basic system is supplemented by an electronic control unit (ECU) in order to increase flexibility and to enable further functions. KE Jetronic Fuel Mixture Adjustment In the mid 1970s, Robert Bosch GmbH developed a mechanical fuel injection system called K (konstant) Jetronic. 8L engine with l-jetronic. Remove crimp in fuel return line. The 'K' in K-Jetronic is from the The K-Series fuel injection systems are continuous mechanical allowing enrichment and enleanment of the fuel mixture to Title: VW L-Jetronic Fuel Injection Workshop Manual Author: Robert Bosch Keywords: VW L-Jetronic Fuel Injection Workshop Manual Created Date: 1/23/2006 12:00:00 AM 15. Problems if it is way off show up at full throttle when the ECU disables electronic mixture adjustment and relies totally on the fuel pressure and idle mixture. MERCEDES 280 8 cyl K KE-Jetronic Fuel Distributors: $200. Adjusting KE Jetronic via the diagnostic socket. 0. The Motronic system takes fuel injection one step further, and incorporates an engine management system that also controls the ignition system. Title: CIS-Electronic Fuel Injection Author: VoA 1984 Subject: VoA Service Training WSP-521-124-00 Keywords: CIS-E, KE-Jetronic, Fuel Injection Training CIS Fuel Distributor and Warm Up Regulator (K-jetronic Engine Only) On early 928 models with K-jetronic fuel systems, poor performance and the inability for the engine to rev out can be associated with the CIS (Continuous Injection System) fuel distributor or warm up regulator. Made by Stahlwille in Germany, this is the OEM tool to adjust the air/fuel ratio (also referred to as CO in the manual) on the 928. Specific steps for this adjustment are provided in Section 5. The mixture screw on the engine side of the PZ26 carburetor is a fuel adjustment. K- Jetronic mixture adjustment . The Bosch KE system However, adjusting this mixture is a bit outside of the scope of this article, so I'll leave it for another one as there are some important things to be aware of when doing this. 4B1 Chapter 4 Part B: Bosch K-Jetronic and KE-Jetronic K and KE Jetronic fuel injection. If pressure does not decrease when crimped line is released, replace pressure regulator. CIS-E (KE-Jetronic) and CIS-Motronic both use a Bosch differential pressure regulator (DPR) to quickly adjust injector flow. I need to give a BIG thanks! to Eric Russell for providing us with this page. The VW guru we most often refer our questions to is Ron Wood at VW Specialties in Huntington Beach, California. System pressure adjustment: The KE2-Jetronic fuel injection system is fitted to turbocharged engines. In '74, the CIS continued with the upgrade to the 2. KE-Jetronic, KE3-Jetronic, and KE LH-Jetronic 3:25 Mixture (CO) adjustment K-Basic 6:31 It takes a little practice; do a search here on: "Mixture adjustment"; lots of info. Aside from simply adjusting the mixture screw you can adjust your control pressure, Bosch L-Jetronic idle adjustment, In those cases the O2 sensor will try to richen the mixture to compensate and during steady driving will do a fairly good job. In that case you cannot adjust the mixture until the plug is drilled out. Mixture adjustment is via the 3 mm allen screw, turning the screw clockwise makes the mixture richer, remember lean "out". CIS sensor plate adjustment. The Ferrari Bosch KE3-Jetronic booklet 539/89 does describe how to set the idle speed using the throttle plate adjustment screw and the air bypass screw so that might help (if your system has a throttle plate adjustment screw). For most pre-1991 manufactured W124s, the fuel injection system on these engines are mostly using Bosch KE-Jetronic. Hi, the mixture is controlled by the KE Jetronic control unit by way of the EHA valve on the fuel distributor. KE-Jetronic A gasoline injection system must inject precisely the correct amount of fuel for the various operating conditions. Mercedes W201 190E Luftmengenmesser. The key is to advance the timing to the peak power point. We receive a number of tech letters from VW owners experiencing poor idling engines. Tuning and Adjusting tried to adjust the mixture I wish to retrofit my Corvair with FI and would appreciate any advice regarding hoe to obtain a K-Jetronic W124 3. This enrichment must be continuously reduced along with the rise in engine temperature in order to prevent the mixture being over-rich when higher engine temperatures have been reached. MB W126 280SE 0-100. The Escort RS Turbo is fitted with Bosch KE Jetronic fuel injection equipment. K-jetronic adjusting screw locations. Megasquirt Support Forum (MSEXTRA) (KE-Jetronic) and CIS-Motronic the AFR can be set across the board via the Co adjustment and the tiny little screw on the Mercedes 190 air flow sensor Soon I will do the video adjustment air For good performance of the engine should have good pressure for the KE jetronic K-Jetronic: Troubleshooting Symptoms K-Jetronic is a mechanical system: the fuel is continuously metered in proportion to the quantity of air drawn in by the engine. If memory serves, Bosch KE-Jetronic used an auxiliary air device; this system came about after DeLorean had ceased production. What follows is a logical sequence for analizing any driveability problem. KE-JETRONIC − An updated Bosch K-Jetronic system that includes an oxygen sensor and a pressure control valve for feedback system to control the air/fuel ratio. 0). The system combines electronics with mechanical fuel flow control. 4 liter engine shown above, was the first CIS fuel systemproduced by Porsche and the first CIS system utilized for a passenger vehicle. Here's a breakdown of Golf Mk1 > Volkswagen Workshop Manuals > Power unit > K-Jetronic/Ignition system > Mixture preparation system, mechanical injection > K-jetronic adjustment of I was actually quite surprised to see his reply when I sent him an email with questions about the mixture adjustment page he > adjust the KE Jetronic fuel Bosch K-Jetronic Fuel Injection. The idle mixture is an Allen screw in the AFM itself. 3. Discussion in 'Engine, Drivetrain, Fuel and Exhaust' started by The Crooner, Jun 1, 2009. plug is then replaced and no further mixture adjustment should be necessary. This page contains information about LH 2. The details in this file refer to KE Jetronic (1984-1987 on the US Coupe and 4k - the 1987. If in doubt, spray break cleaner on pipes, hoses, injectors, intake manifold and MAP sensor. 1 - 2. (C) Mixture Screw. The K-Jetronic was originally designed Injection occurs continuously, i. The Bosch KE system pump. Other additional feature included is the lambda closed-loop system, which allows the fuel to cut-off during over-run and control the mixture strength by using the variation in the oxygen content in the exhaust gas. Then create an air leak. K-jetronic needs ☝ KE Jetronic промывка дозатора How to adjust mixture and idle on E21 BMW The green triangle shows the plug that comes new on our cars. There is a good series of videos by the makers of the CIS Jetronic repair kit. This is a well-known design issue with 914's, "warm start over-enrichment" is what we'll call it. 3 How does D-Jetronic control air-fuel mixture? D-Jetronic was the first commercially successful open loop control system that could control air-fuel ratio according to the air mass sucked in by the engine. D-Jetronic History and Fundamentals but with full ECU for mixture control, etc. Bosch K-Jetronic CIS tuning, LH-Motronic, D-Jetronic, K-Jetronic, KE-Jetronic, how this adjustment can be accomplished by "knocking the plug". 5 Fuel pump - removal and refitting . Realized that I had no reference point and quit. Mercedes suggests that special tools are required to adjust the mixture on the Bosch KE3-Jetronic (CIS-E) fuel injection, such as is used on the 1988-91 560 series motors. com for proof-reading and other input. 000 user manuals and view them online in . My 1988 928s4 has a LH Jetronic system (the L stands for "Luftmengenmessung" in German, meaning "air flow management" and the H stands for "Hot Wire" referring the the Mass Air Flow Sensor that is used). 5k linear taper potentiometer or trimmer K-Jetronic Maintenance and This mixture of Machine Cleaner and Petrol applies to ALL 13. My daily driver AutoZone Repair Guide for your Fuel System Bosch K-jetronic (cis) Fuel Injection Mixture Control Unit And Sensor Plate This CO% idle mixture adjustment is done by turning the 3mm allen screw down inside the air flow metering plate assembly. Mercedes 190 mixture adjustment. 1 Introduction and operational overview of Bosch K Jetronic This form of mechanical fuel injection has been used on the internal combustion engine for many years. The mixture preparation system meters fuel to correspond with the amount of intake air. Mono-Jetronic schematic diagram. so with that in mind even if we don't need it, It would be sensible to bring it in to the calculation, just set accel enrichment to 0 as a baseline and tweak if needed. Because the air-cooled D-Jetronic depends on head temp for setting the warm-up mixture, you're likely to have a bit of bogging and low idle for the first 5 minutes, until head temperatures come up. Bosch K-Jet and KE-Jet. Special thanks to 'PapaJam' and 'Tifosi' from www. Someofus rememberthedayswhenwelookedat this systemand thought "Servicingthis willbeabreeze—thesystem's almost entirely mechanical!" But wedidn't anticipate the ravages offuel con tamination. E-Class (W124) - KE Jetronic Diagnosis - *KE Jetronic Diagnosis Hello all on this forum. Using your Air/Fuel gauge, let the car idle (at temp), then adjust this screw until the mixture is correct. How to adjust typical diaphragm carburetors On most Zama carburetors to help find the correct adjustment there is a small L beside the Idle mixture screw and H beside the High speed View Full Version : K Jetronic Fuel Adjustment. The procedures noted below are outlined and detailed in the excellent book; Bosch Fuel Injection And Engine Management. GmbH (1), Robert Bosch GmbH K-Jetronic. 0 E Gas Air Mixture Adjustment. Mixture formation 7 Gasoline-injection systems Overview 10 KE-Jetronic System overview, advantages 12 9 Adjustment screw for basic moment Typical for the KE-Jetronic, is the cluster of fuel pipes from the mixture control unit on the bottom right, to the individual injectors in the cylinder head. IMi K-Jetronic canlookdeceptivelysimple. Went TWO teeth leaner! The P. KE-Jetronic; K-Jetronic; Silnik M110 ; Silnik M103; K Jetronic Troubleshooting . ''Digital fuel injection, introduced for California bound 1982 Volvo 240 models. The mechanical portion of the CIS-E 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. Of course, the shops use an exhaust gas analyzer to set the mixture instead of setting it by ear. You can then refine the idle mixture later, a weak point on the L-Jetronic. K-Jetronic & CIS Fuel Injection by James Sly photos by PETER WU. Setting your base idle specifications is always the first step when troubleshooting any drivability problem. This adjustment has a greater effect upon the high rpm/load end of the map. 33 KE-Jetronic system mixture adjustment tamperproof plug (arrowed) 34 Stabilise the exhaust gases (paragraph 30). Starting in 1980, US cars were equipped with lambda control, which varied the air/fuel mixture based on feedback from an oxygen sensor. 8L L-Jetronic Fuel Injection System. the ECU idle mixture control knob Setting the idle correction is a PRECISION adjustment and will likely change over If it's basic Bosch Ke Jetronic with no cat then idle speed adjustment is the big screw that bypasses an air bleed around the throttle butterfly. Bosch KE-Jetronic used an auxiliary air If "idle mixture" is way off the ECU still tries to bring mixture into range by using the O2 sensor. How to Tune and Adjust Your Carburetor by Ed Ruelas on April 08, 2016 locate the air fuel mixture adjustment screws, Where is the fuel and air mixture adjustment for a k-jetronic 911 sc 1979 3 litre unit and what tuning/improvement can - Answered by a verified Porsche Mechanic K-Jetronic Maintenance and This mixture of Machine Cleaner and Petrol applies to ALL 13. WORKSHOP MANUAL Porsche K-Jetronic ROBERT BOSCH. 7 liter engine and several changes were incorporated. adjustment, always double checkthe throttle switch Audi 90 1990 KE-Jetronic (It doesn't matter if you alter the height of the sensor plate by the mixture screw to have the right mixture valve adjustment 10. The next photo shows the 3mm tool in place for adjustment. 4th 2003 includes changes to the introduction, Step one, testing procedures for the Altitude Compensating Device on Step 10 and the creation of Step 12 which involves advanced Air Flow Meter instructions for adjustments for Max power and best emissions. NOTE:-whilst working on any fuel system, care and attention should be taken to avoid the petrol coming in contact with any source of ignition, this can include: hot engine components, High Tension (HT) sparks and smoking. M202002. It takes a little practice; do a search here on: "Mixture adjustment"; lots of info. In any adjustment of the spring, You can then refine the idle mixture later, Two of the L-Jetronic stalls can be quickly cured but the last, A mechanical hydraulic injection system provides the basis for the Bosch KE-Jetronic (CIS-E) fuel system. In D-Jetronic, Search among more than 1. Mixture adjustment Adjusting the control pressure regulator on the K-Jetronic injection system2 by Vitaly · February 9, 2014 On the photos 1 and 24 you can see how a control pressure regulator (CPR) looks like. Mixture-control unit Air-flow sensor Fuel distributor Control pressure Differential-pressure valves Mixture Rebuilding Bosch Fuel Distributors & Warm-Up Regulators. I hope to bring to some the benefits of my experience in effecting a remedy to a faulty KE Jetronic system, on a W124 Mercedes 300CE, Australian version. 00. Discussion in 'Mondial' started by caterus, May 22, 2012. The sensor corrects for the decrease in air density with increasing temperature by leaning out the mixture. 5 911 T, with it's 2. Bosch K-Jet Mixture Setting posted on August 31, 2009 by Larry Fletcher | Comments Off on Bosch K-Jet 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. 000. Whereas the increase in engine power was the main object Checking and adjusting the fuel pressure of your K jetronic system Because you are working on a fuel system under pressure take the necessary how do I adjust the idle on K-Jetronic 77-79 has similar set-up but can't remember exactly where the adjustment screw is with an over rich mixture Bosch KE-Jetronic system The Bosch KE-Jetronic fuel-injection system is fitted to Escort RS Turbo models and is a further development of the K-Jetronic system. Apart from alterations to a few details. (B) Dynamic. KE-jetronic diagnostic & adjustment Technical Info KE-jetronic/KE-motronic is electronically controlled mechanical fuel injection. This is needed to allow the mixture to stabilize in the eyes of the O2 sensor. Page 98 4B•2 Bosch K and KE fuel injection systems Turbocharger Type . System pressure adjustment: Mixture adjustment: The metering plate/distributor assembly has a 3mm allen screw which adjusts the relationship between the plate and the plunger. 1988 Mercedes W126 560SEL ECE, running and rev. HAKO - Overhead-Models - KE-Jetronic fuel injection - -rebound plate, diaphragms, sensor plate, control plunger and sensor-plate potentiometer can be actuated -the idle-mixture adjusting screw can be adjusted. One such part is the K- Jetronic fuel injection system, which uses a fuel distributor to monitor the amount of fuel. 9 Mixture prepared in the cylinder during compression stroke. This adjustment does not provide additional fuel to the engine, only air. Test Ke Jetronic Mercedes 190e 2. Bosch K Jetronic Fuel Injection to demands for economy of Mixture formation the mechanical basis for the KE-Jetronic Where is the fuel and air mixture adjustment for a k-jetronic 911 sc 1979 3 litre unit and what tuning/improvement can - Answered by a verified Porsche Mechanic When I went to adjust the idle down, I found it was already screwed all the way down. There is a good series of videos by the makers of the CIS Jetronic behind them are adjustment screws that Here is a good one http://www. Bosch K Jetronic Fuel Injection Manual. Farrar DeLorean status: It's complicated. Ustawianie potencjometru Ke jeta. Wealso didn'tknowthatthesystemwould evolve into electronically controlledversions suchas K-Lambda and KE. 5 bar Leak test NOTE: With CI fuel injection, the lower the duty cycle or dwell, the richer the idle fuel mixture. Caveman Bosch fuel injection tech info? Project Cars That's mostly KE and L Jetronic that's uber sensitive to a bad Air sensor will adjust mixture KE-JETRONIC At BowerPower Auto Tech, we service & restore the following KE-Jetronic components: Diagnostic testing of EHA and adjustment as required. 11 While port injection systems such as KE and L-Jetronic employ a separate Functional sectors of the Mono-Jetronic Mixture formation Throttle-valve potentiometer Bosch K Jetronic Fuel Injection Manual. Development Finally, the KE-Jetronic was also built with integrated ignition and known as Motronic. mixture. My engine working bad at idle. K jetronic system further 344804 vacuum problems troubleshooting help needed further vw distributor wiring as well as checking and adjusting system pressure together with k jetronic l 1 also car stalls when braking vw mk1 golf furthermore simple wiring diagram ford v8 moreover 294070 check valve brake booster line 1985 300d along with cis fuel I have been studying the Bosch K-Jetronic Tech manual and have some The frequency valve adjusts the fuel mixture. It is needed to keep the adjusting screw in the required position preventing it from displacement. Manifold Pressure Control (MPC) sensor 1. had whole system out of adjustment and the car ran poorly so I re-adjusted the throttle body and, after checking for any vacuum leaks or a leaking cold start injector, also decreased the injector duration via the AFM. Mercedes-Benz Pullman S600 W126 1990. Members Online: 0 Guests, Check that the CO adjustment is correct; This will result in a lean mixture due to secondary air. K-Jet Idle Mixture Adjustment Question Hi Again all, Finishing up on my fuel system tweaking, tomorrow I'm going to make final touches on the idle mixture adjustment. But you need at least a tool to measure the CO level from the exhaust while doing it. He needed a 1 ft long extension on the adjustment key, to be able to turn the adjustment screw in small enough increments. The screw is located in a vertical tube between the air hose and the fuel distributor. without as a purely mechanical injection system. Turning the View Notes - (Ebook English)-Car-Repair Manual-Bosch-K-KE-Jetronic-mechanical-fuel-injection from FC gj, at Punjab Engineering College. 5k linear taper potentiometer or trimmer CIS Air flow sensor calibrations/questions. Does KE-jetronic adjust mixtures from O2 sensor feedback? Post by Panzerkampfwagen CXXVI » Mon 08 Apr, 2013 3:24 am Or is the Oxygen sensor purely to monitor? Just set the AFM mixture on my '80 'Euro' 635CSI. 3 - 5. For this reason, the air-fuel mixture must be enriched during the warm-up(ì < 1. GREG'S BOSCH L-JETRONIC FUEL INJECTION IDLE ADJUSTMENT, DIAGNOSTIC AND TUNE UP PAGE, Latest revision Sept. ), control over the idle mixture is required. A bad oxygen sensor could cause the mixture to go rich. Page 1 of 2 - k jetronic fuel injection - posted in AutoShite: Any experts on this mechanical fuel injection know what this is called and what it does? Its from an 86 audi 90 quattro Once installed you will also have to modify your idle speed and your idle mixture. Also it is recommended that the engine be revved up after mixture adjustment to 'settle' the so that others can get an idea of how to DIY tune the KE jetronic But to check if your problem is really due to fuel mixture you can make sure the warm up regulator is always "cold" That will enrich your mixture, Beyond that the only other semi easy way to adjust the mixture with which I have any experience is to fool around with the counterweight in the air flow sensor. Now you can take the inner part out of the main lever where the mixture quality adjusting screw is located. 1:57. I have been studying the Bosch K-Jetronic Tech manual and have some The frequency valve adjusts the fuel mixture. e. K-Jetronic: Troubleshooting Symptoms K-Jetronic is a mechanical system: the fuel is continuously metered in proportion to the quantity of air drawn in by the engine. They are thrown away by the first mechanic to adjust the mixture. The 1973. ‒ Push slide -2- in as far as it will go. IDLE MIXTURE ADJUSTMENT: The Electronic Control Unit for the EFI system is in the right side of the trunk, and there is an opening (sometimes covered with a rubber plug) in the side of the ECU. An analysis of driveability symptoms may point to either a mechanical or electrical problem,or not distinguish between the two. In the mid 1970s, This was called KE Jetronic. MIXTURE PREPERATION in SI ENGINES Bosch KE-jetronic system. 7:1. For L-jetronic systems, the idle adjustment is much simpler as there is a single idle adjustment screw located in front of the throttle body. This adjustment richens or leans the entire fuel map. Turn the adjuster clockwise to decrease idle speed and clockwise to increase idle speed. form part of the mixture control unit. D-Jetronic can handle larger displacements up to 2. Injector- Mechanical valve that "pops" when the fuel pressure reaches approximately 45 psi (3 bar). 3—199 Survey mixture preparation : 1. The idle mixture is controlled by an adjusting screw which aas directly onto the air sensor plate lever, altering its position relative to the control The actual idle adjustment is done via an air bleed screw (on early L-Jetronic models) or an electrically controlled Idle Control Valve. Installation Supplies. ke-jetronic A mechanical hydraulic injection system provides the basis for the KE-Jetronic. function of the KE-Jetronic system is to meter fuel to the engine igniting the air-fuel mixture (Robert Bosch. The tester checks all the Of all the Bosch systems,the KE Jetronic may be the most confusing to troubleshoot. ‒ Hold air flow meter plate in rest position by hand. 41 42 It is no K-Jetronic Maintenance and Calibration This mixture of Machine Cleaner and Petrol applies to ALL System pressure adjustment: Some of these cars have a large adjuster screw on the aux air valve you can set idle by adjusting this. bosch k jetronic 1989 model is (make and type): Bosch KE-Jetronic If it is a Bosch LH 3. 3) Componentes del K-Jetronic: - Bomba de Combustible o alimentación: Algunos automóviles, además de la bomba principal colocada fuera del deposito, incorporan una segunda pequeña bomba de paletas, situada en el interior de este al lado del aforador. leaner or richer will be rougher at full throttle) but a new plus with 2 passes on it still won't have a full ring of color on the base of the insulator. Idle speed and mixture adjustment . 914World. Adjusting KE Jetronic via the diagnostic dirty or leaking causing your mixture You will have an anti-tamper plastic plug over the adjustment hole Does KE-jetronic adjust mixtures from O2 sensor feedback? Post by Panzerkampfwagen CXXVI » Mon 08 Apr, 2013 3:24 am Or is the Oxygen sensor purely to monitor? K-Jetronic flooding not mentioned in Haynes or Charles Probst's "Bosch Fuel Injection and Engine Management" which is turning the mixture adjustment screw until KE-JETRONIC IDLE SPEED PROBLEM Showing 1-2 of 2 messages. The marriage of ignition and fuel injection is a natural fit because they are completely reliant on each other for proper engine operation. com/mixture The KE Jetronic system varied from the earlier, all mechanical system by the introduction of a more modern engine management "computer", which controlled idle speed, fuel rate, and air/fuel mixture. if pressure is above initial specifications, adjust pressure regulator. then adjust the mixture for best emissions. A mixture screw on the air fi lter side of the PZ22 carburetor is an air-only adjustment so opening the screw (turning counterclockwise) will increase the air bleed and lean the mixture. 24 - 212 Equipment Chart - LH-Jetronic XIX,1987 - CHECKING IDLE - USA - and cars with catalytic converters '87 MODELS ONWARD ENGINE TYPE M28. CIS Air flow sensor calibrations/questions I read the 42 page bosch tech manual on the K-jetronic CIS and it indicates that a "leaf spring ensures the correct zero position in the switched off stage". K and KE Jetronic fuel injection. Cold Adjusting washers : 30. Disconnect the harness connector at the MPC. CIS Fuel Injection Operation fuel system Bosch has dubbed K Jetronic, Mixture adjustment is via the 3 mm allen screw, The air-flow sensor and the precise metering of the intake air quantity fuel distributor are assemblies which is a prerequisite. The tester checks all the Notes: The output of this sensor is used by the ECU to adjust the mixture for the intake air temperature. Megasquirt Support Forum (MSEXTRA) simply using a remote pot and some manual DPR adjustment to set KE-Jetronic is constant pressure at the piston so the KE-Jetronic potentiometer replacement Discussion in ' and apparently the adjustment is very sensitive! Also check the mixture 3mm hex key required The LH-Jetronic was mostly used by Scandinavian car manufacturers, CO/Mixture adjustment; Software Operation and Details; Injector Driver Repair; EZK 116K. This adjustment repositions the wiper on the shaft that holds the flap. The final car of the 18 years running 107 series was a 500 SL painted Signal red, built on August 4, 1989; it currently resides in the Mercedes-Benz museum in Stuttgart, Germany. 6 Fuel-injection valve, The cylinders are fed with two separate carburetted mixture streams through separate inlet KE-Jetronic is constant pressure at the piston so the overswing would not change for load or temperature, the ecu then compensates. If setting the mixture on a Lambda system, first unplug the O2 sensor. testing or adjusting the K-Jetronic fuel injection system, measures CO for fuel mixture adjust- How to Tune and Adjust Your Carburetor. pdf Title: VW L-Jetronic Fuel Injection Workshop Manual Author: Robert Bosch Keywords: VW L-Jetronic Fuel Injection Workshop Manual Created Date: 1/23/2006 12:00:00 AM Bosch KE-Jetronic System. Application: Porsche® 928 78-84 K-Jetronic (CIS) and L-Jetronic. Manual setting of mixture screw on K-jetronic For instance there is a relationship between the idle adjustment screw and the mixture screw so is there a Bosch KE3-Jetronic Mixture Adjustment. Product informations. The 912E throttle valve switch does not provide an input to the electronic control unit during the idle load condition as previously found in the 914 1. Plate, KE-Jetronic - Duration: 1:57. 8 bar, adjusting value: 5. 190mex 3,815 views. Bosch K-Jetronic CIS tuning, 86HC, 87HC, 88 X180 Esprit Majority of the Lotus owners are of the opinion, that Bosch K-Jet CIS equipped Esprits would not respond well to common performance improvement practices. Bosch L-jetronic Fuel Injection Idle Adjustment Diagnostic and Tune Up Technical Article Alfa Romeo Spider Specific. Adjusting KE Jetronic via the diagnostic socket Apparently one can adjust the CO2 by using a multimeter on the Anticlockwise is weaker mixture 2. KE-Jetronic system all mixture corrections are controlled electronically by an electromagnetic After adjusting the mixture, rev the engine to 2500 RPM for 5 seconds. The ideal air-fuel ratio is 14. Bosch K-Jetronic Fuel Injection Part 1 Bosch K-Jetronic Fuel Injection Part 1 The Engine's Fuel Requirements A spark-ignition engine needs a particular air-fuel ratio in order to operate. 0 models (like the 350 and 450 SL) were discontinued in 1980 with the introduction of the 380 and 500 SLC in March, 1980. I assume it's the 3mm mixture screw holding I don't have the info in front of me but I can recomend a good source for k-jetronic K- Jetronic mixture adjustment . Even D-Jetronic will fail with massive false air. The real scope of this article is the OTHER adjustment that can be made in the CIS-E system -- that of the EHA servo. The dedicated shade tree mechanic can do it, but needs to be well-informed first. Update 7-29-2007. Checking the fuel distributor of the Bosch CIS (K-Jetronic). K-Jetronic Maintenance and Calibration This mixture of Machine Cleaner and Petrol applies to ALL System pressure adjustment: KE-Jetronic potentiometer replacement Discussion in 'Engine' started by chrisd87, Aug 15, 2014. 4L (for a stock 2. 5 Coupe GT has KE3). D-Jetronic Fuel Injection for the Porsche 914 "L- Jetronic" system used on the is used to adjust the idle mixture. Diagnosing Bosch KE-Jetronic Injection If you've done much work on European cars, you've encountered Robert Bosch K-Jetronic mechanical fuel injection, which first appeared in the early seventies. Many drivability and running problems can be traced to improper base engine settings. Also it is recommended that the engine be revved up after mixture adjustment to 'settle' the sensor plate. At idle, when fully warm, we want the mixture to hover around 50%. adjustment. America Precision Machinery, I picked them mostly for their customer service and rating on ebay Victor has very good tips on how to do it properly in his series of videos, he has some amazing cars and a ton of other useful videos. I adjust my fuel pressure with a FSE Adjustable Rising Rate Fuel Pressure Gauge. KE-Jetronic - function of the diaphragm and of the valve body adjustment of mixture ratio to loadl - different openings of the air funnel, which This can cause combustion misses to occur. K-Jetronic Troubleshooting Basics If you don't have the test equipment and understanding of the K-Jetronic 5. how do I adjust the idle on K-Jetronic 77-79 has similar set-up but can't remember exactly where the adjustment screw is with an over rich mixture Mercedes 116 and 107 chassis models were built with both Bosch D-Jetronic and CIS K-Jetronic fuel screw is basically an air fuel mixture adjustment screw. I am also addressing the basic settings involved in adjusting the fuel mixture here. This success is a result of the advantages which fuel injection can offer when considering today's demands for economy, performance, and cleaner exhausts. Flowtech stocks most common Bosch fuel distributors and warm-up regulators. BOSCH L-JETRONIC FUEL INJECTION IDLE ADJUSTMENT, DIAGNOSTIC AND TUNE UP PAGE for USA models of Alfa Romeo Spiders 1982-1989. com is the fastest growing online 914 community! We have it all, Where is the idle adjustment on a 1975 Porsche 914 with a 1. KE2-Jetronic 1 989 model year Turbncharged cars Fuel injection and Ignition control systems - sealed and no further mixture adjustment should be necessary. Bosch K-Jetronic Fuel Injection Since their introduction, the Jetronic fuel injection systems have proved themselves millions of times over under the harsh conditions of everyday driving. So I'm searching for a KE-Jetronic know-it-all who can give some advice or point me All the electronic mixture adjustment is doing is fine tuning the mixture D-Jetronic Idle Stability. Backed the idle off about a turn and 1/2 and then reset the mixture. 2 Jetronic System 221 =long term fuel mixture too weak in Setting the mixture - but first read below The basic mixture is checked under the following conditions: Engine warm All mechanical systems of the engine in spec: valves adjusted, ignition system in good order, timing properly set. O. Opening the screw will allow more fuel into the engine for a richer mixture. The 'LH' stands for German: "Luftmasse-Hitzdraht" - the hotwire anemometer technology used to determine the mass of air into the engine. Check the resistance at the MPC terminals. On larger engined k-jetronic some jiggery pockery with resistors in the aux. KE Jetronic Diagnosis*KE Jetronic causing the computer to adjust the mixture on a Documents Similar To KE Jetronic Diagnosis Eha, Pot Testing Etc. I have noticed that the idle adjustment screw has little or no effect on a cold engine mixture adjusting screw) T - function of the primary-pressure regulator KE-Jetronic - function of the diaphragm and of the valve body C. 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. Adjust valves, even if your workshop manager claims that your engine has hydraulic valve lifter; Check air filter for cleanliness; Check all vacuum hoses and pipes for false air. K-Jetronic mixture adjustment. ke jetronic mixture adjustment