The MYSTERY Mercedes - Part 1 (Thanksgiving Special)

[@mph5896]

Nothing more annoying than getting a car dropped off that has a junk battery, flat tires, very low on gas.

[@andybonneau9209]

Don't know if you know this, but the hinges allow the hood to stand up straight so you don't keep boping your head on the grille.

[@zupmeoff]

Says a lot about the mechanic when folks bring their vehicles from other states or several hours away. Great mechanics are hard to find now a days. 😀

[@hikerJohn]

I would if I did not have a good shop near by and it was a car more complicated than my Jeep. It would be a vacation. PHAD or SMA

[@Garth2011]

Most shops have overhead, rent, light bill, insurance etc. They are financially motivated to bypass sound and reasonable diag methods to quickly get the revenue flowing.

[@TheBROY123]

@@Garth2011 not true, working in a massive shop myself people are too cheap to pay for the right diagnosis. If you find someone who has a lower shop rate then thats a bonus. As far as worrying about overhead. I dont care what it costs to fix my clients cars as long as it was diagnosed correctly and they are happy then i bill my appropriate hours

[@zoidberg444]

Yeah - something like this in my experience you have two options. Put in endless hours of work to solve the problem yourself or find someone like Ivan to put in a couple days work to work out whats wrong with it.

[@jeffreywilsonrubikscubeonb2428]

Actually, these days its not hard to find excellent auto technicians. The industry has changed over the last 2.5 decades. People have to generally love the trade to get into it now and are willing to put up the ignorant stereotypes perpetuated by those bad apples that took advantage of what once was not considered a skilled trade... It's not the 1950s anymore. There are Ivans and Eric Os in every town and city. Problem is...people have a backwards way of judging this. Fact is.. the good techs are the ones that charge for diagnostics. Not the other way around. Professional technicians charge for their time and knowledge and back it up with guarantees. Mechanics fire parts cannons. People who are willing to waste hundreds of dollars on a free "guess" are the same ones to refuse to pay 100 dollars for a guaranteed diagnosis. The problem has never been a shortage of good techs...its always been a shortage of good customers.

[@WatchWesWork]

Wow. This is a head scratcher! Don't leave us hanging too long.

[@PineHollowAutoDiagnostics]

Old Euro technology...the "Dark Side of Diagnostics" haha

[@boodro2122]

By far, this guy is my favorite automotive engineer. Just top notch!

[@boodro2122]

Napa sucks here in KS, too.

[@kevinbarry71]

The last year of the W124. And also the last year of OBD nothing. I also am reminded of how much I hate those door buzzers back in the day

[@compu85]

These have OBD 1 - you can get blink codes from the socket near the battery.

[@bostedtap8399]

Excellent Ivan, nothing phases you, Mercedes (Daimler Benz) developed the CAN- BUS system, nothing wrong with counting a few Leds; available to anyone without expensive diagnostic tools in 1995. Thanks for sharing, and may I wish, your family and all Republic of the United States a safe Thanksgiving 🙏

[@TonyRule]

*fazes

[@bostedtap8399]

@@TonyRule Most interesting.

[@shawnwimberly9294]

Fayzez

[@chrismacphersom3258]

I got a 190e 93 in my yard, 4 Sedan. But has the can bus system. Now I know what to do with it. Finally. I bought it running rough. Got it to run smooth. Now crank but no start. Good crank too. Been sitting in front of my trailer since 2017. Got the 2.9 inline it. Those good motors?

[@Bunkysworkshop]

Ivan, I watch these channels like yours and many others because of the quality content. I don’t watch tv so I can stay clear of all the negativity finger pointing. Please keep up the good quality work. I just stay clear of politics and religion. I’ve found it never starts and ends well.

[@NoWr2Run]

LIGHTEN UP FRANCIS.

[@Bunkysworkshop]

@@NoWr2Run I hearya. However please understand when these subjects come up on these channels things can get out of control very quickly. I definitely don’t want that to happen to this channel. Ivan’s channel. He has worked so hard and I know he wouldn’t do anything intentionally but shit happens. Happy Thanksgiving 🦃 be safe.

[@jimhaines8370]

@@Bunkysworkshop If anybody leaves over a joke good bye, I.m sure he knew that when he made it.

[@paullenzen2562]

I agree Bunky. I used to be subscribed to 8 different channels like this one. The " host(s)" on few of them started making political jabs and jokes and the comments etc. escalated quickly, which caused me to unsubscribe just as quickly. I come here for fixing stuff and learning, not for discourse, rancor, FU fights, hate, discontent and the like. I can get that at family gatherings.

[@Bunkysworkshop]

@@jimhaines8370 And here shows some of the problem. You say goodbye because its not hurting you or your channel in anyway. So who cares but most of us do care about Ivan and his channel so thats why it was mentioned to him directly. Lets not go down this road and just learn from this quality channel and leave the political crap out of a automotive channel.

[@ecaparts]

Those blink codes were fun with OBD-I. GM & Ford used Fast and Slow blinks for the ‘ones’ and ‘tens’ place of the code. I guess Mercedes engineers had nothing but time to watch the LED blink 47 times!! Lol

[@cward1954]

Some of the Chrysler vehicles had those blink codes in the mid 80's as well.

[@MrLocky31]

I’m in uk and Vauxhall used blink codes too All you needed was a bit of wire between two pins in the diagnostic socket and watch the engine light flash on the dash😂😂 Good old days

[@Garth2011]

@@MrLocky31 "Paperclip" test.

[@cward1954]

@@MrLocky31 Vauxhaul... now there's a name I haven't heard in a while.

[@cullenmiller8170]

Like several other people posted look at the wiring harness. I had an E320 95 wagon like this and a 95 S350 Turbo Diesel. I had replaced half the engine wiring harness on the S-class by the time I sold it due to the insulation falling off the wires. The wagon was new enough and didn't need anything besides basic maintenance. I probably pull the CKP and inspect it and have a closer look at the flex plate while turning the engine over to make sure everything is good there.

[@brainndamage]

The ckp sensor could be inverted if you say it's from a newer model year. A few years before (91) Mercedes used biodegradable wires that would crumble and short out in 10-15 years. You had to replace the entire harness or replace all the wires to fix those. Not sure if 95 models still had that problem.

[@brainndamage]

Also put back all the original parts, aftermarket are often junk out of the box.

[@michaelcoachtechvp2846]

Harness all the way up to next e class

Not sure about the channel of the mercedes video you mentioned in the video, but the guy standing in front of the mercedes has his own channel and webshop called Mercedessource.

[@AlanBurnham]

What a headache. Hats off to you for tackling it.

[@1kleineMax1]

17:50 Totaly true! The OBD standard came from the USA to Europe. It allways amazes me when is see on what old cars you can sometimes plug in a standard OBD 16pin connector! And i still think that germany is more unfriendly to non dealer mechaniks than the US. Everything here is way more expensive when it comes to spezial tools. For example BOSCH own the distrobution of OTC in Europe and OTC has some nice stuff that is good price value. You can NOT buy this stuff via BOSCH, you would need to import it......

[@davidworsley7969]

When Ivan gets excited, I know I'm about to become baffled and confused-God knows why but I really love this channel.

[@PineHollowAutoDiagnostics]

haha yeah this one was definitely not an ordinary no-spark diagnosis...old Euros are always "interesting" to say the least!

[@x01e]

Love the political humor!! And i agree!!

[@enricopolazzo33]

Hopefully they stay in CT!

[@mattaluoppal]

What I would do?? I'd definately wait for part 2 of your video...

[@jumpinjojo]

*Definitely

[@aldrinalmario1513]

Quite an interesting diagnosis Ivan. I still have one of those W124's, but the older style Mechanical Fuel Injection system and is quite easier to diagnose and get running. Those newer W124's with the HFM system are more complicated to trouble shoot and have a history of failing wiring harness insulation. Which is the reason I got the older model. Looking forward to when you get to pinpoint the cause of the crank no start and the fix. Cheers!

[@mzee5533]

I’ve a W211 04 E320 she’s also a good machine now running at 200k km

[@mikesvirtualgarage9917]

Oh man!! More German iron! The old blink codes are a bit strange but easy to at least give you a clue where the issues are. Cannot wait for part 2!

[@baxrok2.]

"..we could, but this is really cool..." Yup, it sure is. Thanks Ivan!

[@_RiseAgainst]

Ivan is still learning battery warranties are for ornamental use only.

[@Oddisee3000]

These cars need OEM replacement parts, especially if that MAF sensor is aftermarket like those coils are. Bosch or nothing… those coils say bremi

[@Pitmanworker]

Hey Ivan, a remarkable piece of art this machine is :). Fency blinking diagnostic codes, weird signals on the scope, vacuum tubes popping and vanishing in the dark depths of the engine bay :). I should say you need to take advange of the ability the hood to be lifted vertically upwards. This gives a great access to the guts of this beast (check the hinges). I am not sure, but probably you already got the information that this engine management system during the starting phase (until the engine reaches 500rpm) has fixed ignition timing. This fixed timing is dictated either by the crankshaft or the camshaft position sensor (depending on the engine managed). This particular engine (by the look of it I believe it is M104.992) uses the camshaft possition sensor for the fixed igniton timing. You did not gave us complete picture about during what circumstances you got the different waveforms for the ignition signal (one with nothing at all and other with some fency bursts on the line), but I reckon that the one without any movement on the ingition signal was with the disconnected camshaft possition sensor and the others with the bursts were with connected sensor. This engine also has what Mercedes-Benz back then called "Camshaft Adjuster", which can advance or retard the shaft by 32 degrees crank angle. Troubles with that system could cause poor engine running, misfires, rough engine idling etc. Based on the aforementioned guess I took and the back log information you gave us for the vehicle and from the thousands kilometers I am sitting right now I would guess - Camshaft sensor troubles: - The gap between the sensor and the camshaft. - Wrong/Not meeting specifications sensor. - Stuck/malfunctioning Camshaft Adjuster. Although ...... Based on my past experience with M111.941 (which is PMS (Pressure Management System) controlled 4 cylinder engine) - they might fried the HFM-SFI (ECU) module. These things are very picky and do not tolerate free play with the igniton system. For example: what you have done - taking out the coil and trying to see if there is a spark grounding the sparkplug on the engine metal (like oldschool soviet style spark check) is forbiden by law for these systems. The transistor (I believe it is MOSFET, but it could be open-collector bi-polar) grounding the ignition line in the ECU is blowing off itself immediately. Personally threw in the trash two ECUs of that kind due to bad spark plug cable, which was preventing or intermitenly loosing the spark of one of the cylinders. From the other hand blowing off all three transistors for the three coils simultaneously is highly unlikely. If only one line was damadged you should be able to start the engine but having very rough idling. Very peculiar case! As the brand slogan says - "The best or nothing!" Usually, when they break this is the part, when "nothing" comes into play 😀😀😀 Good luck!

[@PineHollowAutoDiagnostics]

Great comment! You will certainly enjoy the rest of the series and the outcome 👍😁

[@davidgrisco1939]

I'm guessing ignition module / wiring / connector as a result of age or green crusties or rodent damage. That's where I'm placing my bet. Looking forward to part 2!

[@t5ruxlee210]

Straight 6 from the days when real motors were a thing.

[@kevin9c1]

Yeah except I think these were known for head gasket issues.

[@stevewhite3424]

@@kevin9c1 Couldn't be too bad, this one's 285000 miles and 27 years old. I bet you the fix is going to be simple once he figures out what precisely is wrong.

[@kevin9c1]

@@stevewhite3424 Sure. But do you think it's on its original head gaskets? I don't. It just means someone paid to keep the car on the road. Which is fine.

[@caduceus33]

That little flashing light business is like right out of Fred Flintstone!

[@lvsqcsl]

I am wanting to say that 1996 was the first year for OBD II diagnostics. My 1987 Chevrolet El Camino has CCC (Computer Command Control) uses the check engine light to "flash" codes. The computer controls the spark advance and the mixture on the 4-bbl Quadra-Jet and a few other things. Great video!

[@themechanic6117]

Your dedication is amazing. Curious to see where this goes

[@paulgilliland2992]

Ivan right away there’s an adjustment on the hood that puts it in service mode so you don’t keep bashing your head on the grille. Too late now , next time maybe.

[@throttlebottle5906]

looks like a large can of worms has been opened. that's some weird looking ringing on the coil control, I'm thinking bad ecm ground or the ecm has some capacitor death and crusties all over the inside from cap leakage. seems to have been a lot of that around that era. not sure about mercedes but probably. could be compounded by the crank sensor being inverted, but I'd imagine it would cut fuel as well as spark. is the crank to cam timing offset right? I assume they did the parts canon of coils, CKP and MAF all at once after it quit running from other causes, which is why I said ecm ground/bad ecm.

[@mariusbezuidenhout8851]

This was probably one of your videos that I enjoyed the most, took me back to the days when I had a 92 Toyota Corolla that also had a flashing light on the dash that flashed engine codes, the good old days. Love your videos!

[@stephenmarshall5302]

Brilliant video as always. Good to see some old school tech and with the customer computing from all that distance it shows there aren't many who CAN fix these types of issues. I had a similar issue one time on a TT, a shorted coil pack was pulling the ignition circuit down. Maybe disconnect coil packs and rechek ignition control

[@bonedaddy4670]

I love a good mystery, I’m just glad it’s not me working on this car!

[@wyattoneable]

Great work so far. Have a blessed Thanksgiving.

[@bamboozled9120]

My next step is ….. wait for part 2

[@drjohn5801]

Love the way you talk your way through your troubleshooting process - that enables one to follow your thinking and logic process. Nice job 🙂

[@va7052]

Welcome to my world......cool diagnostic process so far

[@banjoyBoy]

A tip for PHAW: all Mercedes hoods have extra releases at the hinges that allow the hood to stand straight up and lock in place vertically. That gives you a LOT more headroom when you need to get back near the firewall. It's a feature you should learn about and use. It may save you some chiropractor bills...

[@e.v.a.l.s]

would you say it gives you max headroom?

[@jamesallen9366]

You're a great mechanic! Yep definitely that bumper sticker is the problem! You crack me up. Would love to buy you a beer someday!

[@patrickmorrissey2271]

Yep! There's your problem!!! Heh heh heh.....

[@antoniomancini1794]

This is a great Channel I really enjoy these videos

[@simonilett998]

Hey Ivan🤘 The old ones can be the most tricky..lol..Perhaps if it has an external ignition module it might be bad, I think they were 2 wire coils but I better go re-watch. Pretty sure you had coil control, so that should rule out an ignitor module issue if it has one, but no spark events seen on the scope trace and that weird hash we saw on the coil control captures has me very suspicious of a coil control issue, or bad ground etc. If it's not fully grounding the coils, maybe it could suggest a bad ground to the module, if it even has the said module, or a bad pcm ground if ignition coils are pcm controlled? Although, I'm guessing the next step might be to verify cam/crank/timing relationship...and I don't like that hiccup in the cranking kadence🤔👍🇦🇺

[@loubakker5000]

Checked if engine has good ground ? Not seen physical spark. Timing might be off. Lost a magnet ? Short to ground ? Fuel coming out of injector ? Fuel pump relay ? Seems to give issues Can't wait to see his follow up vid.

[@somerandomguy3868]

I'm thinking the wire or module that controls the coils, love a good mystery

[@dznuttzonyachin7499]

1988 300se was my favorite !! Straight up tank !!

[@laser-sj]

I reckon the crank sensor polarity is one of your problems 😁

[@Hybriddiag]

First time no euro T.... word from ivan😁..anywats ss always nice way of start pin pointing the exact issue thats what good about ivan and thats how good tech should work..cheers

[@stevewhite3424]

So what is up with the no part 2 yet?? This isn't a daytime soap opera that have dramatic pauses. Lol! Damn it I wanna see you how you fix that!! 😁😁

[@andybonneau9209]

I believe that problem at the rear bumper requires extra diagnostic charges since it causes false starts as well. 😁

[@TracyCorbett]

Good joke about the sticker man. I didn't know Trumpsters had a sense of humor :) Sounds like you might be shocked by how liberal our German friends actually are in general. Seriously, though, I love your work - have learned a lot from you.

[@robbflynn4325]

No idea what I'd do next, that is other than wait for Part 2, and you know what, I know you will get to the bottom of whatever is wrong. You have a beautiful place up there Ivan, central Pennsylvania is beautiful-you are about an hour north of where I am in Bedford County. Have a blessed Thanksgiving.

[@compu85]

While that car has throttle cable, the throttle is moved electronically by the cruise control. There’s a go pedal position sensor inside the throttle body, and then the cruise control opens the throttle. If the throttle control computer dies, there’s a mechanical linkage that will let you open the throttle some amount… like full throttle in the car will give you 1/4 throttle under the hood.

[@charlesallen1874]

I have owned a few Mercedes gas engine vehicles. ML 320, S 430, SLK 320, SLK 230, and now drive a CLS55. Every one except the SLK 230, needed a crankshaft position sensor at some point. Oddly enough, I bought my last one from Amazon. It was genuine Bosch, made in Germany . Was around $18.😳

[@steveedwards1072]

Very intriguing. My next check would be mice damage to the coil harness??? Peace

[@skysurferuk]

I ran a W124 estate, a few years ago. An awesome machine.

[@rcrossrd]

Just stumbled upon this video. Great work! By the way, a "cheap-ish" (~$100) automotive meter by "ALL-SUN" (?) EM-135 has two functions specifically for this. One is fault code counter, which does what your LED does, but more automated. The other is Mercedes DTC reader. The meter is rather meh in the accuracy department as a multimeter (certainly does not warrant $100 tag), yet I find it OK for working around engines and it has other useful features for automotive or just small engine work. For modern vehicles fancy scanner and picoscope do more than a meter though, so it might not matter to you.

[@throttlebottle5906]

probably bare touching and corroded wires at the crank sensor. there was lots of bad wire jacketing back then, it would shrink lengthwise and expose wiring an inch or more at the connectors or crumble away. new magical coatings of the 1980's

[@MrTaiese]

Love watching Kent from Mercedesource

[@georgeking1552]

An interesting diagnosis... It looks as though the modules have been looked at before and were loose... Are they depending on case ground? With others swapping parts and opening things opens possible issues at times.. The anticipation is high for part 2...

[@DavidPruitt]

There's a problem with the CKP but it shouldn't keep it from starting. If its firing injectors it should be firing the coils. That weird signal makes me wonder if there's some problem between the ECU and the coils, like a bad ground or power wire.

[@PineHollowAutoDiagnostics]

That's exactly what I thought too...if it's firing injectors, why not fire the coils?

[@Barry101er]

I agree-a problem at the rear end.

[@peteysquirrelchaser9028]

Stab in the dark, is there a dedicated ground on the ECM that serves just the ignition circuit?

[@Sandmansa]

Wow. I haven't messed with one of those in years. It brings back memories. Back when I was a young mechanic working for a Volvo dealer, the shop had these old school scan tools that you had to plug in a cartridge for the vehicle make, model type and year group. It worked on 80's and 90's Volvo, Mercedes and BMW. They took forever to read out codes. But it worked in a similar fashion as your LED light trick does. Codes are generated by the pulse cycles. The only nice part was the scan tool would keep reading codes until it finds a repeat and it would display these codes on an LCD screen. So, depending on the module you were reading from, you would have to look up code descriptions from a book. Even though technology has come a very long way since then, I still miss those simpler times.

[@Sandmansa]

My next step would be, go order the correct crank sensor for that exact engine from Mercedes. From what I have learned over the years is, each year, Mercedes changed the resistance and or polarity in the crank sensor from year to year. Even though they may look identical, other years, makes and models are not interchangeable. Anyway, good luck with that. Looking forward to part 2.

[@gregwhite5058]

Geez, my 86 Crown Vic with EEC-IV at least outputs each digit of the two-digit codes separately so you don't have to count each flash (or in my case, sweeps of the analog voltmeter needle) separately. Nice to have when there actually is a code 98!

[@kdmq]

At 29:53 look at the big picture: the delta T for injector firings is halved on the very first injector pulse. I'm thinking there's some kind of timing issue where something is 180 out. Could be caused by the crank sensor, cam sensor or any of the timing components themselves. My next step would be to find a good cam-crank correlation, not just a good crank signal.

[@reweydewy]

I've seen one of these with the wiring all shorted together around the coils cause the insulation crumbles off the copper. I believe it was the exact same model wagon and all.

[@johnshellenberg1383]

I'm one minute in and I'm going to guess it's wiring harness related, those cars had horrible main harnesses.

[@kevin9c1]

Yo dawg, we installed plug wires on your coils on plugs, so you can spark while you spark.

[@brianw8963]

Interesting, thinking another wiring issue somewhere down the pixy path! Of course I could be wrong,thought I was once before, but I was mistaken! Happy Thanksgiving Ivan 👍

[@joe2mercs]

Back to basics, the car does not like the CKP sensor, Why? This is an old car and probably does not have CMP/CKP timing error codes. If the computer is using the CMP as its reference and sees the CKP out of time with it this might be the error. I would look at the wave form traces and check the crank and cam position relationship in detail. The CKP tells the computer when to spark but the cam tells the computer when to inject if the timing is out it just will not run.

[@tvguy12346]

Could the voltage not be high enough if the gap between the sensor and the flywheel changed for the following model year?

[@russellhltn1396]

I wasn't watching closely, but what was the amplitude of the waveform? If the gap is wrong, the computer isn't going to see what it wants to see, but it still looks right on the scope if you ignore the amplitude.

[@tinkerwest]

Every time I hear you say "let's check service info," I'm saying "good luck with that." Service info on Mercedes and BMW is almost non-existent. I was shocked to see you managed to find a listed scope crank signal for comparison 😲 BTW, I was thinking how older cars and perhaps some late model cars will flag a crank sensor problem although it may actually be a cam sensor problem. That cam signal did look a little funky...

[@PineHollowAutoDiagnostics]

Yeah I was surprised how good the info was on this thing. BMW is MUCH worse... Can't even get basic DTC descriptions on AllData for modern ones!!

[@peto22]

@@PineHollowAutoDiagnostics So, you don't even want to find service information? Is sharing information sources prohibited?

[@mauricelackey5324]

@@PineHollowAutoDiagnostics My first exposure to a code flasher was a 86' Nissan PU. Computer under the passenger seat, I thought it was cool as hell.

[@scruff_01]

From someone on the interwebs using an eBay blinking light reader. (47 control of ignition coil voltage exceeded limits). maybe a book of codes came with the reader? The car was a 1995 e320

[@craiggoodwin9704]

....it's the weirdest thing!" Can't wait for Part II. Thanks for sharing! P.S. Wishing you and your Family a Happy Thanksgiving!

[@jessicav2031]

The crank signal is not just inverted. In the diagram it shows the large pulse starting with low. So you have low, lowhigh, low, high... On the scope, the large pulse goes in the same direction: high, lowhigh, high... Is that a problem, I wouldn't be so sure. What about the signal levels? Wasn't there some Staten Island vehicle or something where the signal was there, but just not powerful enough for the computer to register it correctly? Or slipped timing? What about sticking a borescope in the crank sensor hole to see if you can see anything funny going on? (Rust jacking? Loose timing belt/chain? Messed up notches/magnets? Yes, they replaced the sensor but that doesn't mean it is properly seated either.) Also I noticed that the dash tach does bounce.

[@jimharper6073]

"I noticed that the dash tach does bounce" I have seen that referenced before but I do not know what that tells me ???? TIA

[@jessicav2031]

@@jimharper6073 I think usually that would indicate the computer is seeing SOME crank signal. Doesn't mean it is seeing the full, correct signal though.

[@robertbien7895]

Jessica. You know your stuff, girl! You've been wrenching a while I bet

[@jessicav2031]

@@robertbien7895 Been repairing family/friends vehicles for years. But I am an engineer, my goal in life is to be able to fix anything :)

[@Flowtester1]

I noticed that low high low thing to.

[@AP9311]

Wow, a Mercedes oldie!! That is classic! Didn't think they were around!! Great diagnosis!! All half way thru the video! Too type a comment lol. Btw, i sent you an email in response to previous video. Which you asked me to email you. :) Now I'm gong to watch the rest of it ama will add a comment later :)

[@AP9311]

Okay, adding a comment, wow. That can be tough to diagnose '95 trouble codes! But cool to see waveforms and show what the engine is doing. This piqued my interest on how you are going to troubleshoot this. Look forward to part 2!

[@jeremyaustin9103]

W124. One of the world's best built cars

[@PineHollowAutoDiagnostics]

This series may change your opinion 😅

[@jeremyaustin9103]

Hi Ivan, Unlikely, I will only drive a Merc...nothing else lasts, drives like a Merc. 3 of them parked outside....If your ever in England have a go of my CLS 350 diesel waggon...40mpg and real poke. The hardest thing is you are diagnosing this from first principles, my local specialist is as happy on the older or newer stuff...the merc diagnostic kit is stupid expensive. There are not enough of these around for mechanics to be super confident of each models foibles. Looking forward to seeing the fix, and you taking this for a spin. Do not be shy about revving this engine! I have a R129 as a weekend car with the same M104 engine. Still pulls 140mph ball day long whilst in France on holidays. The only weak point on this engine is it will need a head gasket half way through its working life. 240horses from a 3.2 i6. I would expect 30 mpg driven normally all day everyday. I think your channel is awesome, and its great to see you get stuck into a bonafide classic

[@jeremyaustin9103]

@@PineHollowAutoDiagnostics Ivan, might be worth confirming that this car has had its wiring loom replaced under warranty. Merc were "persuaded" to use biodegradable wiring looms in this year. Lots of cars in Europe have had bits patched in...long term ownership would signify a new loom (if its bad) which are still available. Hope you can source all the parts easily enough stateside

[@generalturbo5987]

Boy Mercedes really does do things pain in the @$$ before 1995 looking for trouble codes 😂🤣🤣 keep up the great work bro

[@davidraezer5937]

Looks like the ecu needs to see a cam signal to reference the ignition pulse. I have a ecu from a 95 W124 cali if you need it. Just pay the shipping

[@robertoruiz7069]

HI IVAN great video again.I would have liked to see you say>well let's look at this box of replaced PARTS from the parts canon. just so we know EXACTLY what the customer already replaced.Then i would like to see the new parts he put in and MAKE sure for MYSELF that he ACTUALLY PLUGGED THE WIRES BACK TO THEM> MY reasoning is ,What if he forgot to put say the CKP wire back on? YOU are assuming he did put the right parts in it and he did put the wires back where they belong.As you just started testing for signals ,right? when my friends ask for help ,the first thing i do is DOUBLE CHECK their work,50% of the time,THAT'S where the issue is,haha If it worked when it was built new and now it no longer works and the customer say's BUT I PUT A NEW PART IN!!!! And no I'm' not a mechanic,but i did work on rockets,so we always double and triple check. Have a good thanksgiving IVAN,and i hope you put out part two,i can't wait.

[@PineHollowAutoDiagnostics]

Great tips Roberto! So you are a real rocket scientist! 😃

[@titaniumman_22]

Ivan for president! 🇺🇸

[@JoelAutomotiveInaction]

I have a pico scope capture for that system for coil and ckp. I can share it with you .

[@MrLocky31]

Check the resistance on that crank shaft signal It may be pulsing but if the resistance is to high the Bosch ecm will not like it. As far as I remember on the old Bosch systems it needs good signal from crankshaft sensor to fire the coils and or fuel pump..

[@WayneMercier-tt2li]

Good call. The peak crank shaft voltage appears to be 7v by the polarity is backwards; is that the problem with the new crank shaft sensor initially installed?

[@kevin9c1]

Inquiring minds want to know if that 16 pin connector is compatible with OBD-II. It's not out of the question on a 95 with CA emissions, as strange as this car may seem.

[@Johnathan_Waters]

No, it definitely is NOT! lol...

[@ws2664]

i would probably check the fastest route to the junk yard

[@richardgift4244]

could be the the CKP insulation shield heating the GND some where too...

[@PineHollowAutoDiagnostics]

Wouldn't that be visible on the scope CKP signal?

[@geepeerces]

the *very* first thing you do with a 93-97 Mercedes is to check the manufacturing date on the wiring harness, its behind the battery. also check the throttle body, both need to be 1998+ replacements..

[@Silent-Lucidity]

This is worse than waiting to find out who shot JR!! Yes, I'm dating myself and our youngins will be like WTF? Lol! Where's part duo?

[@alward9901]

Ever since the ROSWELL INCIDENT . The USA has the best electronic systems and computers . Conspiracy LOL 😂! ??? Good one Ivan 👍

[@pb3033]

👍... inspect flaws in the harness maybe, you tell me..

[@johndoe7212]

Engine harness at ignition coils circuit shorted together???

[@zx8401ztv]

That is a daft system for reading codes. Two cmos 4026 or 4033 counter/display chips would count up to 99 on a two digit led display. Mercedes could of made a nice counter, tight buggers lol.

[@throttlebottle5906]

it's almost like they wanted you to bring them in for factory service and repair.. 🤣🤣🤣

[@MarcHord-mk5ff]

No wonder they shot the parts canon!

[@billziegmond4943]

You do get the good ones my friend. BTW Happy Turkey Day from Volt Greek and I.

[@PineHollowAutoDiagnostics]

You too, Bill! How is the Astra running?

[@arnoldverser8113]

OMG love the diagnosis it's the bumper sticker LOL love it

[@tiredoldmechanic1791]

Never buy a battery from No Auto Parts Available.

[@gregj3515]

A thinkpad with a matt screen will fix the reflection problem and is easier on your eyes...

[@agmc4me]

Happy Holidays

[@brianreed9099]

Problem with the crank high signal where the magnets are. It doubles back across the zero point compare to your known good

[@tanaseav]

of course it's the crank sensor.

[@Schnippen_Schnappen1]

This reminds me of car alarms and counting chirps to program options. Very slow process

[@madjimbo4176]

My 92 civic had the same flashing system under the seat.