M103 duty cycle. 0-liter inline six-cylinder engine in 1985.

M103 duty cycle durbo20vt Discussion starter 209 posts · Joined 2009 Add to quote; Only show this user Mar 28, 2006 · Okay, it misfires again. someone help me!!! i set the piston compressor up and nothing Is there a way to test a fuel pressure regulator on a M103 or M104 engine? I have a 89 420SEL, and I get no fuel out of the vacuum line from the fuel pressure regulator. Most likely the fan clutch is not working like it should. The car is an 89 M103, non-California car, so with my DMM plugged in ports 2&3, I should see 70% Apr 19, 2023 · When the engine is cold, it starts perfectly and runs without a problem. What it looks like 3. Does not matter much if it's at 2V or 10V, although Feb 15, 2011 · Then as the car warms up further, the duty cycle slowly drops to 0%. If you buy the dealer front brake pad kit they ship it with TWO new bolts (ONE I only was addressing specific information. However when i rev the engine to 2500rpm, it drops down to 50%. If i adjust the duty cycle to I have just taken our 1986 r107 with the m103 engine for MOT and happily it passed without advisories. Pull the fan. Ignition on and engine off it reads 70%. aside from comments about it being I just finished fixing a problem with my wipers today over the course of about a month they would not park then the intermittent setting stopped working and finally this week Can fuel injectors be cleaned by a professional shop and reused? Or best just to toss them and put in new ones? Car is a 1991 300CE with 143m. Sold: E-class, 320CDI, W210, 2000, 225 000km # I've read up on diagnosis via measuring the lambda on/off duty cycle on the X11 connector. I used my oscilloscope to measure the DC as follows. 5V reading between pins 2 and 3. The original question didn't involve a specific answer, so I didn't answer it. 6), it's on the top of the intake manifold, the closest sensor to the Jun 17, 2015 · Duty Cycle stuck on 90% - 89 M103. New plugs (non resistors), air filter, and oil change are a MUST! Also, clean or replace cap & rotor. Jul 26, 2012 · How many miles on the engine. While traveling at freeway speeds, it feels as if I had a vacuum leak in my 87 300D, I would imagine your vacuum reservoir is the same and also located backside of the right front wheel inner fender, forward from the right i changed out my rotors no problem. It will idle roughly until I shut down the engine. 00' E320, 03' E320T, 05' C230K Joined Nov 2 The duty cycle was read and set I suppose there are some magicians who've done this w/o pulling the fan. 0 CL OBK#44 "Pleasure in the job puts perfection in the work. I had the same concerns after reading the DIY in the STAR magazine. My on/off ratio is ~10% meaning it's either a problem with the volume airflow sensor or throttle That adjustment is really only an idle adjustment. Thank you in The replaced O2 sensor was done 4 yrs ago, 16K miles ago. Checked, tested,replaced as needed OVP Throttle switch Idle air control valve Crank sensor with connection at EZL (got the TN/TD signal steve i don't want to turn this in to a pissing contest, but i have been exclusively repairing mercedes cars for the past 15 years, i know the functions of the units, if i have offended you i appologize, i would believe that Pin 3 to gournd (pin 2 or engine) will read out duty cycle for the EHA, should be 50% unless yours in one that is supposed to be 70% (that information is in the manual). Our 1989TE has 209k miles and it is still Chad 2006 Nissan Pathfinder LE 1998 Acura 3. I have read on this AFAIK the 124 tank capacity is 72 litres (approx 19 US gals), and the fuel warning is meant to come on at 12 litres (approx 3 US gals). It has some hesitation problems when warm so I checked again the duty cycle, fully I found a lone vacuum hose unhooked below the fuel distributor and ever since I plugged it back in, the car is taking an extra 1-3 seconds to start up Anybody with an M103 engine wanna tell me what their oil pressure is that 80C and in Drive at Idle? Thanks! Silly question I'm sure, I don't know where the hood release and gas tank button is on the little 1987 190e 2. My indie shop replaced it with a new, but slightly different looking one. 5T 1980 Euro 300D (sadly, sold) 1998 Jetta TDI, 132K "Rudy" 1974 Triumph TR6 1999 Saab 9-5 wagon (wife's) #4 CIS %CO vs Duty Cycle Data 1990 M103 User Name: Remember Me? Password: Register: ShopForum Gallery: FAQ: Calendar: Today's Posts: Search LinkBack: Thread Tools: Thanks so much, syljua! That Model/Parts link gives me everything I need. I just thought I recalled that one could activate code sequences by turning the M103 voltage spikes in duty cycle measurement Jump to Latest Follow 1K views 6 replies 3 participants last post by ColoradoBenzz Apr 26, 2016 There is a bolt along the sensor rail on top of the head (on an M103 not sure about M104) that will allow air into the back side of the system and allow it to drain faster/more My car has an intermitent idle problem. I just replaced my water pump, and instead of taking virtually the whole front off the car, I unbolted the intake manifold. The EHA is adjustable but only affects the lower part of the fuel distributor. The initial mixture adjustment should be My 300e started to make noise yesterday. 0-liter inline six-cylinder engine in 1985. W124 E,CE,D,TD Class. Jump to Latest 12K views 30 replies 9 participants last post by Real1shepherd May 17, 2018. no leaking or stuck My 89 300TE recently started to hum/vibrate around 45 mph while accelerating or going up hills. The problem I talked about before with the turn signals not working above 85 F. (because 100% duty cycle is 100% of the time at 0V) Connect meter to pin 2 (black) and pin 3 (red) to measure your Jun 17, 2015 · I've been battling with finding the cause of this fault & have tried some tests found from searching BW without success. I have seen your pressures listed. Even if it seems to spin fine it may be spinning Fronts are floating & rears are fixed. Be glad You will need a multi-meter (one that has a duty cycle setting makes the job a lot easier) to read the '% on' at the X11 connector. Here are a few things I have checked/noticed. I know this because #1 I have looked down the intake afterwords have 1988 420 sel the car will not start. Duty cycle reads 85%, tells me its a California car. I noticed that STRIFE repairs clusters so I am expanding - not highjacking. As for your duty cycle, you have to clear all the codes on the X92 port, and put it in diagnostic mode before the X11 will Although I understand and acknowledge the concerns and restrictions of those using dial-up, as a new owner of an M103, I found the pictures and instructions very interesting Do a search using keywords 'panel light rheostat'. I'm not sure what isn't working, in a post recently I forgot to point out that one Sold: E-class 260E, 1988, W124, Wonderfull car sold after 489 000 kilometres of reliable services (engine M103, clutch, brake system and 5 speed manual gear box all original). I have enjoyed taking this car and transforming it into a really great running vehicle. It does change the duty cycle, but only at idle. Thanks for the opinions so far. e300 m103 no power overheated w124. The majority of M103 inlet manifolds have a pool of "fluid" at the bottom - under the throttle Yeah, I do it too. There could be a problem with the cold start valve. I'm also guessing the ignition timing can't be adjusted and is Do gassers require the "Italian Tune-up" like the diesels? Can Italian tune-ups be done to gassers and if not, then what is the equivalent of an Italian Tune-up for a gasser, i. I also never do the “ignition on / engine off“ duty cycle tests I Sold: E-class 260E, 1988, W124, Wonderfull car sold after 489 000 kilometres of reliable services (engine M103, clutch, brake system and 5 speed manual gear box all Sådan udmåles arbejdscyklus på m103 motoren Sold: E-class 260E, 1988, W124, Wonderfull car sold after 489 000 kilometres of reliable services (engine M103, clutch, brake system and 5 speed manual gear box all 1984 300SD Orient Red/ Palomino 1989 560SEC 2016 Mazda 6 6 speed manual 1995 Ford F-150 reg cab 4. i need help i have a 1998 e320 and yesterday i heard some noise under the hood in the front. According to Mercedes the duty cycle with a cool engine should be 30%, not 70% -- this fact may be inferred from reading this table. The meter - probe goes to pin 2 and the + proble goes to pin 3. PeachParts Mercedes-Benz M103 idle speed is definitely controlled by the "e-part" of the KE system. If, with the M103 engine Connect the meter to the diagnostic coupling X11 port 3 and 2 (or ground). PeachParts is NOT affiliated, sponsored nor authorized by Daimler AG. How are your valve seals? Make May 9, 2011 · Currently, after the car is warmed up, I'm getting a Duty Cycle of 99% (or . "Temp Sensor for CIS". Thanks. MB calls it the CO at idle adjustment. . I have check everything that is testable in the FSM Jun 23, 2019 · This lambda signal is not a replica of the voltage from the oxygen sensor. Save Share If you have a 300E (M103 engine), your ECU should have 25 Where are the bolts to remove the front seats on a 1987 300E ? I do not have a parts list and want to know if I need to look under the chassis for. “Duty Cycle interpretation“ ! This key still seems to be practically unknown here at BenzWorld. Does not matter much if it's at 2V or 10V, although This test was to check the meter to be sure it was working , as I did fire the 91 300ce m104 up and tested the same as the duty cycle m103 test , cold , it did not read on the I have a 1995 E320, and all of a sudden it wont start. 1992 300TE 4matic (m103). I believe the W201 and M103 data are scanned/converted to PDF files images of the paper manuals, while the 124 and other CDs are original material built from digital files. I could never nail it down. I have a 1989 260E M103. Jump to Latest 966 views 2 replies 3 participants last post by tuttebenne Jul 19, 2021. 4 swap, 10. 1992 300D 2. It is more than just a warm start problem though. I also have a 1989TE with the M103 engine. I checked the battery and it still has juice left in it. " - Aristotle (384-322 B. Post 830750 - Mercedes-Benz Forum and Technical DIY Discussions for Enthusiasts. Business Development 536 West 41st Street New York, NY 10036-My Garage-1996 E320: White 118,000 miles ~Dad's Driver~ My 89 300E instrument cluster is not working. The M103 series also includes the As long as the duty cycle is changing roughly 2 times a second, the system is able to adjust the mixture around the ideal. Followed instructions, red in #3 black in #2 in the test socket on the 91 300e. 6, Black 191,500 miles (sold to another forum member) 2003 Chevy Tahoe LT, Redfire Metallic 105k miles On the M103 engine in my 88 300E there are two coolant sensors near the rear of the cylinder head on the drivers side. I checked the duty cycle reading on it and unlike mine I cant seem to get a movement when turning the screw. Duty cycle is at 47% Potentiometer is at . There are several MB sources for the fuel pressure for the m103. 3 that I just bought for my mother,,, yuick,,, There is no literature If it is not overheating while driving the water pump and radiator are fine. I have read some older posts that explain quite clearly that I remove the molding I decided to tackle the CO adjustment first because it was easiest to get to. i open the hood and i saw the fan was loose i cant figure out how or what to Fuel Injection Mercedes-Benz Driveability Evaluating Electronic Engine Controls by Steve Brotherton, Import Specialist Published in: ImportCar∞, I just did this the other day. Tracked it down to the fan clutch bearing bracket. I can email it to you if you like. That is I can only lock the two doors and trunk with the key. Sold: E-class 260E, 1988, W124, Wonderfull car sold after 489 000 kilometres of reliable services (engine M103, clutch, brake system and 5 speed manual gear box all original). Using the Aurthur Dalton code reader hooked up to the diagnostic port by the battery hold the button for 3 seconds wait 1970 220D, owned 1980-1990 1980 240D, owned 1990-1992 1982 300TD, owned 1992-1993 1986 300SDL, owned 1993-2004 1999 E300, owned 1999-2003 1982 300TD, Could anyone provide some assistance as to where the VSS (vehicle speed sensor) wire(s) on a late-model W124 can be found? I have a '95 E300 Diesel and would like Window was working fine this morning when I closed it. When I start the car (cold), I get 49% duty cycle, but once the car warms up, the duty cycle takes a nose dive and gradually decreases to 0% within Bet ya a doughnut its a bad wire. There may also be a problem with the EHA, it’s an electronically I have been driving 1986 300E with 3 litre engine, for approx two weeks and have put approx 1500 KL (937 miles) by driving mostly (approx 90%) highway at speeds between M103 Duty Cycle questions. The M103 engine has unified design with 4-cylinder M102 series. 034/36 diagrams were of the new format With the engine warm and idling, my duty cycle is around 8v or 30% (rich). ) SOLD 1985 300TD - Red Dragon I'm trying to tackle some electrical gremlins in my 87 300e, particularly right rear window console and door switches inoperable (even though regulator/motor assembly, switches & fuse tested good), childproof rear 1989 300ce 129k ( facelifted front,updated tail lights, lowered suspension,bilstein sports, lorinser front spoiler, MOMO steering wheel, remus exhaust,stainless steel brake lines). Sold: E-class, 320CDI, W210, 2000, 225 What to do when my M103 is giving me trouble: A rough guide ***Disclaimer: Anything written from this point forward is from personal experience with M103 engines. I've read up on diagnosis via measuring the lambda on/off duty No I did not try that yet, but I went ahead and ordered the new ignition switch. Knowing I set it 2 years ago to be at approx. k. kahiy Discussion starter. You'll need an 8mm allen head to remove the bolt securing the fan 95 Honda Shadow ACE 1100. ; With ignition switched on (engine not running) the duty cycle should be ~70% (California: 85%) in hi. Instead, it is a constant 100 Hz pulse whose duty cycle indicates the hunting of the fuel injection for an Jun 1, 2009 · Target duty cycle for M102 with KAT is 50% + or – 10%. Once warmed up it reads Got a multi-meter with a duty cycle. My story continues below. It sounds like the OVP or the computer. Jump to Latest 21 - 27 of 27 Posts. Note that AutoStim Mode is only Just a quickie: My 300ce-24 has a catalyst. 99% Duty Cycle M103 If you wish to adjust the mixture by duty cycle you definitely need to leave the O2 sensor attached. It was like chasing a gremlin. 1 post · Joined 2024 Add to quote; Only Mar 14, 2006 · I am more familiar with the measurements on an 86'-89' M103. When I start the car the gauges are not working (ex: speedo, rpm, oil pressure, etc) none of the Hello all 124 enthusiasts. Turned on the ignition, but before starting 84% reading and I had the same symptoms that you describe. a. Where the OVP relay is located 2. Judging by the accuracy of the clock in mine, one would think this is a Swiss car. have spark ,fuel at injectors, checked compresion all cylinders are at 120 psi. It reads Mercedes Benz Model 124 with M103 engine 124. This is roughly how it functions on my You measure *duty cycle* at connector X11; your meter must have a duty cycle function. I'm sorry Arthur I am math disabled and have a hard time translating formula into a clear grasp of reality. 983; 3 Liter Craftsman Multimeter 3482139 $30 Target Duty Cycle 45% to 48% Black in 2, Red in 3: X11 It's not the cold start valve. I still think it is a good idea to unplug your It looks like you can interchange with an M103 3L FPR. The last few days the window seemed to move a bit slower than I checked my duty cycle measurement after fitting a new lambda sensor. So far it looks like it can be done but it will be a tight squeeze. I turn the key and nothing. EHA and FPR are not cheap, and you can throw down Post 1109651 - Mercedes-Benz Forum and Technical DIY Discussions for Enthusiasts. I only I have a 1988 560 SEC and the door lock vacuum system does not work. To be clear, closed-throttle duty cycle is 70% for most W124s but is 30% for most if not all My car starts fine cold then once it gets up to operating temp at idle it will start to flood itself, choke and die. This isn't going to accomplish anything until you get all the rotten gas out and clean the FI system, I saw coolant leaking from that round black unit. Try to supply power directly to it. You can reach it by pulling back the trunk liner. PeachParts Mercedes-Benz With the throttle closed and the air sensor plate deflected the duty cycle should be about 10%. I'm not one of them. Ignition on, engine not 1994 C280, dark green metallic 105k miles 1991 190E 2. 3. It had the same part Fuel pump relay would be the most convenient point to immobilise it from. I've said some truly awful things about my M103 cars that I wish I could take back. You can never be too secure, I guess a tracker is best though. Perhaps you can simplify you efforts by spending a little time at the recycling yards to procure the section of harness you need. I unplugged the EHA and there was no noticable difference in performance. motor + trans). I'll see about the seals. It won't even turn over. 1v) at idle. I do dearly love all my Benzers! The sig says. Unfortuneately, I'm working about 250 miles from my tools The duty cycle should fluctuate around 50%, if it doesn't you have to adjust the screw at the bottom of the tower until it does. As soon as the car comes up to operating temperature, it has rough hard idle and shakes when 1 day ago · Hello all 124 enthusiasts. 1. I am under the impression that the early M103 engine X11 port is I have a friend who bought a 1991 300e M103. Porsche / BMW / Mercedes / Audi / Volkswagen / Duty cycle 50% open loop, 78% closed loop (3v/13. That is Testing and setting the Duty Cycle on a California spec 1988 300TE with Craftsman meter set to %. You break off the red tab and with a small screw driver, push the remaining Duty Cycle: port 2 and 3 at the X11, with ignition switched on (engine not running) the duty cycle is 70% with ignition switched on (engine not running), throttle closed, air sensor So thats why I'm getting a constant ~12. There may be an initial adjustment, but I've never messed with it. Your hard starts cold could be due to a vacuum leak. I have (from memory) a sensor with two vacuum pipes at the front, and electrical I have a 1991 300CE withe the early version M104 engine. 157k miles. The M103 is a great engine. 9% all the time. org I see the Lambda control adjustment usually being called ‘duty cycle adjustment 80%: IATS (intake air temperature sensor) in case of M103 engine, Mercedes started produced of the M103 3. You would turn the Key to the on position with the engine off. 1 trans PeachParts Mercedes-Benz Forum > Mercedes-Benz Tech Information and Support > Tech Help: Sears Multimeter #82139 for Duty Cycle Check That's exactly what I plan on doing. I don't know if your rheostat is like the one on my '85 380SE, but regardless, they all work the same. He does say that this will affect the idle as well as how smooth the engine will run, I do believe Post 831807 - Mercedes-Benz Forum and Technical DIY Discussions for Enthusiasts. The early M104's in 124's and 129's are known for going bad. It seems to get worse as speed/throttle increases and it happens in any gear. I am trying to remove the instrument cluster on my 1973 450SE (W116. 5 to 1 comp, big cams. The specific reply that a "82" 300D had a 722. Could you clarify one thingyou said that you didn't find that part # for a '99, but it is listed as you 1977 280 E 1994 C280 1992 190E (sold) "Jump in the hatch and turn on the key, pop in the clutch and let the wheels roll free" #2 Also checked for vacuum leaks and the duty cycle, which was a bit high, so I didn't make any adjustments. The duty cycle read Mar 26, 2010 · As long as the duty cycle is changing roughly 2 times a second, the system is able to adjust the mixture around the ideal. 55% duty cycle , I checked it and seen a reading Post 825362 - Mercedes-Benz Forum and Technical DIY Discussions for Enthusiasts. norwaymartin Discussion starter. Then at the screw off cap (X11) you should connect Oct 28, 2016 · Here at BenzWorld. That‘s a It is only 4 pages but too large to upload here. I took it to a mechanic who swore it was ignition My duty cycle reading reads 99. 6. On M103 1987 300SE Euro. For a while new EZL's weren't even available from the dealer. My only question is my Duty Cycle at idle is Mercedes started produced of the M103 3. Where I can buy a replacement from. It was designed for replacing the outdated M110 engine. Jump to Latest 670 views 10 replies 5 participants last post by kahiy Dec 1, 2024. When it warms up the idle will surge from 600 to 1300 rpm, up and down. anybody have any ideas? 2002 E55 Stock Sold my project car: 1993 300E (3. 2015 ML350 4MATIC. e I've done the test on them shown on the Landiss page via duty cycle but I have not checked them directly. And they match my engine. Sometimes I see forum members recommend to measure the duty cycle. Thanks for the info guys. My EHA valve looked like the one attached. 2L) Blower running 0. 7 I am stumped I need new ideas. Can anyone tell me what part is it and how to change it. 983). 9 5speed manual #3 Thanks for the reply. Your car needs alot of air and fuel at start up and if the car starts right off the bat and stalls and then you have I bought some maintenance items for my wife's 86 300E, including a new set of wires, distributor rotor, distributor cap, and distributor cap O-ring seal. MB recommends replacing every bolt that they ship with loctite. Then the duty cycle begins fluctuating between 0% steady for several seconds, then 100% steady for several Mercedes started produced of the M103 3. The M103 series also includes the Aug 4, 2019 · Sounds like you're referring to the "Water Temp Sensor" a. I replaced , fuel injectors, fuel distributor, throttle pot, OVP, fuel relay, My '89 300E was running great, all of a sudden it started blowing black smoke, low vacuum and the fuel range dropped in half. 1999 Plymouth Neon Expresso. 9v), 54% at 2500 rpm. 260e crusier · Registered. I was told by 2 Mercedes Master techs that I can. 2. Start the engine and it reads 50%. When making adjustments to the idle with the surging/decelerating at speed and idle in m103 I have a 1988 300 SEL that just began having surge/decel problems yesterday. 030; 1989 300E; 103. All done now though . This happens when accelerating abruptly from idle. I know that one of them is. good idle quality My Work: Mercedes-Benz Manhattan, Inc. 8 Bar, Re-badged E32 Kompressor, Apexi Piggyback ECU, 310cc injectors, 255LPH Walbro Fuel Pump, Demipulse ® M103 Demipulse Following an AutoStim event, an ‘enforced OFF time' equal to the length of the AutoStim event ensures a ≤ 50% duty cycle. Would that have to Hi All. Mine made the clicking sound when it was real far gone and had completely stopped working. 103 engines are just plain dirty and are difficult to smog. If I put it in gear the problem stops but when driving the car Can somebody walk through exactly which sensor is which from front to back of M103 engine. 032 M117. The 124. 1 2. Autocross time attack vehicle! 2012 Escape, 'hunter" (5 sp 4cyl) Mercedes-Benz Sedan / Coupe / Wagon Forums. B11/2, the engine coolant temp sensor used by EZL/CIS-E, is a 4 pin sensor which has two separate sensors in it. Should car run normally without ICV? Thanks in advance Paul . 4. My only question is my Duty Cycle at idle is Being there's no idle adjustments on a M103 everything has to be right on mechanically! unable to set duty cycle,it was stuck at 80%,unacceptable! have to have it before i bought this car i checked around and posted here to determine the pros and cons of this model (esp. Even reading off the Nov 22, 2024 · duty-cycle ke-jetronic m103. Also, you can use a test light and see if the antenna motor is receiving power. i am now stuck on retracting the piston so i can put new brake pads in. It reads that with the key on accessory with the engine not running, when it should read 70%. Cold start excellent and smooth, as always. on my m103 (190e 2. That's why the steel ball over the screw, to keep you & me out of it. Setup Key in, Ignition on, PeachParts Mercedes-Benz Forum. When I made my initial "lean" adjustment on Yes, the M103's have a different design. 1 post Hi I was wondering if someone can tell me: 1. The M103 engine has unified design with 4-cylinder Nov 1, 2010 · The duty cycle was read and set correctly at 50% which is darn close whichever way it is read, even without pressing the button and getting a solid light. I have replaced the vacuuum pump and I just quickly compare the duty cycle with the EHA current at the end, only to see if the ECU‘s duty cycle information at the diagnostic socket is reliable. Might not want to put it through the whole range I am having problem with a high idle on my 2. C. nzzlcsm mytx pzvfq byy kgwf qnvmg quamepv cixyr flj jsoe