Using a Decadebox to diagnose an Engine

In this video we use a Ditex decadebox to diagnose an extended crank.For questions about the tool go to autoditex.com/
I'll demonstrate that this can be an effective tool.
We also get to learn about cold start strategy and coolant termperature sensors.
Enjoy!
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DiagnoseDan
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DiagnoseDan Fixed it again, see you next time guys!

[@NewLevelAuto]

regeleenheid= control unit , I'll save you the search 😉

[@hammondautollc7809]

hey dude glad to see someone else I watch here love your videos too

[@Diagnosedan]

🤣🤣 It's called fish bowl in Europe😜

[@NewLevelAuto]

Thanks ! Yeah I've been around Dan since 246 Subscribers

[@hammondautollc7809]

@@NewLevelAuto I enjoy watching you guys video, Eric O. Pine Hollow, Scanner Danner, New level auto, and now DiagnoseDan you all give me insight. Like two weeks ago Eric O had a Chevy with an E85 problem and wouldn't it know I got Chevy with a MIL checked the codes and there was a code for rich fuel mix did all the standard test came down to me cleaning the intake and the MAF reset the fuel trim and still the fuel trim read rich mix them remembered the Eric O video with the flex fuel truck so I checked the service data said nothing about the car being flex fuel checked the owners manual and found that car was flex fuel compatible checked the alcohol content from the scanner and read 48% and I knew the ower only used 87octain so physically checked the alcohol content and nowhere near 40% let alone 48%. Because I remembered that video fixed that car so if it wasn't for videos like this I'd be stumped on some repairs. thank you all

[@kevincampbell8298]

Someone was a parts changer not a thinker!

[@wyattoneable]

You have mastered the English language. You have mastered diagnostics, and now I can also add you have mastered the art of teaching and video editing. I enjoy this one a lot Dan, well done.

[@Diagnosedan]

That's a great compliment, thanks for that. Merry christmas to you and your family!

[@jwilkers1]

Anyone else feel bad for the starter motor after those extended cranking attempts? Great video once again thank you Dan.

[@Diagnosedan]

Don't be it's fine🤪

[@pontiacsrule8761]

To me, this is why his videos are so entertaining. He doesn't just throw parts at it, he wants to know exactly why. That poor person who went somewhere & was charged so much for parts & misdiagnose time. I know from experience working @ a shop, that you don't get paid by the hour,. you get paid by the job. This makes you want to rush & throw parts at it. That's why I only work on my own vehicles now and quit that job Another well informed video Dan

[@markm0000]

I got one of those boxes from watching this video and it’s really handy. It has prevented a lot of headaches. Thank you 🙏

[@tam1381]

Unlike the cold engine Dan the Man is smoking hot. All the best Dan.

[@Diagnosedan]

Thanks Tam i'll tell my wife that😊

[@hustlerforgita7538]

Yes he is very good at explaing things no missing details left to missunderstanding.

[@Diagnosedan]

Thanks!😊

[@joew8440]

That temp sensor reading hot is like a no choke situation on a old carburetor. For us old people. Nice job, Dan

[@robtemple3445]

New Sub'r here. I am thrilled to find your channel! I'm a retired 30+ year dealer tech (Acura, Ford, Hyundai & Suzuki). I don't do this for a living anymore, but it's still "in my blood", so I still love learning (& rehashing) this stuff. I love when you add-in the (short & sweet) theory, & description of operation to your diagnosis & repair. This really is a huge bonus! My friend, you have something very special here, & I will be sharing this with my dealer tech friends, managers & service writers. Thanks so much for all you do!

[@JesusDiaz-sr4zp]

Great job, Dan !! The most important thing here is there is no fault code, and that happens because the info from the NTC temp sensor is in the normal range of it. The ECU doesn't know whether the engine temp is about 90 degrees or not, but 90 degrees is plausible for it. This issue is what about a lot of technicians get confused and they're not able to give a solve to this kind of problems. Love your channel !!

[@user-cl5ov9dx5o]

Other shops fine example of throwing parts at what should be common fault checks. Great video Dan, you might want to forward this video to the other techs. You might think not, but remember.....what could be wrong with a correct procedure to make a better income. I am a mobile mechanic, on the road repairs.....and hear this expensive story with owners about how techs NOT KNOWING HOW TO DIAGNOSE was an expense to the owner. Effective diagnostics and presentations like you make this industry better. Thank you for the excellent video and information you provide.

[@Diagnosedan]

Thank you David!

[@karl9460]

I love that you teach the new diagnostics and explain the science behind it too. Oh the days we used a manual choke on cold days.

[@Diagnosedan]

🤣🤣Long time ago!

[@pontiacsrule8761]

Not only are your videos Educational & you are a great teacher, they are filmed in extremely high quality. You rock Dan

[@daibhiseaghdha153]

what a logical person you are, with common sense, which does not seem to be common these days, thanks for unscrambling a problem, with a process of elimination. I have a mate, whos a mechanic, the diagnosis said the water pump was not working,, it turned out, it was the sensor which was not working correctly.

[@topcars5524]

You are a man who does a good job. I wish I could master the English language as well as you, as it is necessary in the field of car mechanic maintenance.. Thank you for what you provide

[@rbilardo47]

Dan, you are the man. Another great diagnosis, that others failed to find. I don't understand why people don't bring their vehicles to you in the first place lol.

[@Diagnosedan]

I would be very busy than 🤣🤣 And there are alot of other great techs out there😊

[@rbilardo47]

@@Diagnosedan yes there may be a lot of other great techs out there, but you have a gift. You are an excellent teacher, I doubt anyone else can compare themselves with you. God Bless. I'm learning a lot from you.

[@JOHNPHUFNAGEL]

Great video Dan, for the people that don't have a fancy little black box and the gauge is stuck high, just unplug the sensor and observe the gauge/scan tool pid if its still high take a test light and LIGHTLY touch the terminals on the connector and watch gauge/scan tool to drop in temp or volts reading. If its stuck low do the same test, only connect test light to positive batt terminal. This will check and confirm wiring integrity. Merry Christmas

[@Diagnosedan]

Merry christmas John to you and your family!

[@babasani2]

thanks for every video u post,i always check my youtube notification for your new videos every morning when i wake up

[@Diagnosedan]

😊👍

[@edwindelarosa4968]

Hey Dan just wanted to gladly take the time to thank you for "taking time out of your life and having the patience" to do this, teach pleople and edit these videos. Great job Dan. Congratulations stay motivated it is greatly appricuated.

[@lesrogers7310]

The best.....as always! Shame we don't have Dan's level of ability in all motor technicians (or even the majority).

[@Diagnosedan]

We are trying to change that by these video's 😊

[@HFJ999]

The way you demonstrate your diagnostics is so simple structured and easy to follow. Keep up the good work i will be watching and learning on each video thanks DiagnoseDan!!

[@Diagnosedan]

Thank you for that!

[@zxtenn]

Looks like you gained ANOTHER new customer Dan, if a shop didnt fix the issue the 1st time I wouldnt be back there again

[@brucelott3583]

I'm not sure if this applies now where you are, but a lot of American systems will use a default value, typically -40 deg F, for the temp if the sensor is unplugged or fails open. This would be a quick test with your conditions . I just found your channel and I am impressed with your techniques to find the problem and fix it, not just start throwing parts till you hit the target. We have a lot of so called techs that think they can hook up a scan tool and it will show them how fix a problem. I found out many years ago you have to think the problem through to weed out all the false indicators, a lot of times having to think outside the box. Thanks.

[@Diagnosedan]

Thanks for watching my video's it's appreciated Bruce!

[@bengreen6980]

Absolutely spot on as usual Dan. I don't often comment but I always enjoy your videos and methods.

[@Diagnosedan]

Well I'm Glad you did comment this time👍 Thanks Ben

[@sinegra30]

Due to a bad temp sensor that car was in a permanent closed loop condition which lead to a lean fuel mixture resulting in a long crank with cold engine. That Decadebox from Ditex is very useful not only for the automotive industry but for many other applications in the electronics field, Thank you Danny!

[@Diagnosedan]

Thank you Argency👍

[@burgerbirger2221]

That decade box was pretty clever👍 What we're looking at is the same as the good old choke did back in the day.

[@Airman..]

Dan nailed it again

[@Diagnosedan]

😉👍

[@juerbert1]

You do your job with great clarity and excellence, Dan, thank you so much !

[@Diagnosedan]

Thanks Juergen!😊

[@obsoleteprofessor2034]

During the 80's, U.S. cars usually had a separate sensor for the gauge, another one that talked to the computer and yet another sensor that controlled the cooling fans. Later on, they were all combined and one sensor talked to the computer and that info was sent to the dash gauge for visual indication. The same info was used to set fuel flow and to also decide when to turn the cooling fans on.

[@TheWaelabo02]

thank you . your chanel as real life auto mechanic school . no matter how much i know how many years work and how many problems i solved steel learn and enjoying watching your videos ,,,

[@Diagnosedan]

We can learn everyday😉

[@godsonamedume4723]

see next time guys . the best channel for all auto mechanic thank dany

[@kuwaitloving]

You are my good teacher.

[@Diagnosedan]

Thank you!👍

[@irontrev1640]

I cannot wait until you are working on all the 2020 Bmws, I cringed when I sat behind the seat, those are going to be fun for teaching! Keep it up

[@themechanic6117]

Great job. I got a good laugh out of the other shop changing the exterior temperature sensor 😂

[@Diagnosedan]

Yea me too 🤣🤣

[@johnjohannemann1220]

Excellent diagnosis and explanation as always. I have to say though at 63 years of age and a master automotive technician, I have never heard of a “decade box” here in the USA.

[@Tubecraft1]

I love your videos Dan especially the outtakes at the end and the catch phrase " diagnose Dan . . . Fixed it again "😀

[@josedejesusvelazquez6863]

Dan, the reasoning ability you have is amazing. I congratulate you for that and continue to delight us, watching your videos we learn and delight ourselves, from TIJUANA Mexico 🇲🇽 the most visited border in the world 🇲🇽

[@Diagnosedan]

Thank you very much José!

[@lombardolorenzo8744]

That was a good and quick diagnostics Dan , but the problem with many people is they don't have much theorical knowledge of Automotive technology how sensors work , for example the principle of that sensor NTC type sensor not many technicians knows how it works and what it does for the engine ECU. well done mate .

[@alexandriabowe]

DiagnoseDan you fixed it again, but you taught me how to diagnose better. Love your work always invaluable knowledge. Thank you

[@jonascourtney5999]

that internal resistor also protects the ECM when the wire shorts to power or ground. Thank you for the video.

[@Diagnosedan]

Exactly!👍💪

[@amokoikaw1]

SAME SCENARIO HERE with the IAT sensor, for a Nissan Sentra 2007. NO start condition. With my Resistance Substitution Box, it's confirmed fix for a $299 sensor replacement. DD is a very good YTube mentor.

[@TheAutoTech]

I usually check these with a test light. Although not as precise as a decade box, you can still verify integrity of the wiring and that the ecm can see a change. This is a good example of why verifying customer complaint is critical. Good fix Dan👍🏻

[@Diagnosedan]

Thanks Larry, there a many ways to test a thermistor. But this video was also about how to use a decadebox. Thanks for watching 👍

[@ismailmecano5721]

Ect is the master sensor in every car... Good job Dan as always...

[@theeekobreeelo1186]

Your more than a great help. Your a new revelation in the automotive industry. Thanks you only came up on my feed yesterday and I'm hooked. I'm going to ask all my mechanic friends to check you out.

[@georgeEPC]

Another great video Dan. Wish you had time to do even more videos per month

[@Diagnosedan]

Maybe if the channel gets bigger 😊

[@viz_aviz9189]

Good to see someone else using a decade box, i seem to have collected a few over the years i might stick a couple on fleabay now that you have advertised them . merry christmas

[@Diagnosedan]

🤣🤣Merry christmas to you and your family!

[@nicnak4475]

Plumber told me my boiler was scrap as it would not start and keep running, that turned out to be a thermister as well, cost me £3 so same as a car it pays to check the simple things first, as you do Dan, Well done.

[@peterhodgkins6985]

Excellent! There's no substitute for a decade box!! Outstanding catch on the erroneous temperature reading during the initial start attempt!

[@jamesbruno5896]

Awesome job substituting the correct resistance values, quick & to the point!

[@Diagnosedan]

Thanks James👍

[@daveys]

Live data is really valuable in the absence of an actual temperature gauge. Great video and really informative!

[@johnlenz8221]

Great video - clear and concise. Noticed the color of the coolant when you swapped out the sensor. Sorry that you have to deal with Dex-Cool too!

[@Diagnosedan]

Thanks for the great comment!

[@gkarapeev]

Mate. Forget about highlighting your technical skills and knowledge. This compliment will be on a different level. Seeing that service shops like yours exist, gives me some kind of internal peace and makes me feel like the world is a better place and the future will be alright, because we can fix everything… together! 🫵❤🙏😂

[@mikechiodetti4482]

I wish I had bought one of those decade boxes years ago. Good and Quick Diagnosis!

[@JC-wh9pj]

Good class. I’ll be buying a decade box. Thank you

[@Diagnosedan]

Your welcome and thanks for watching my video's!👍

[@dannastasi4114]

Nice one. Keep up the good work. Love your videos.

[@steveguest8028]

Great diagnosis again Dan but to a knowledgeable tech this cold start issue should have been fairly easily diagnosed,it’s hard to believe that so called professional techs could have failed to find this problem.....love watching your videos keep them coming...Many Thanks 👍🏻

[@allanlacanilao4648]

good job Dan even though its been posted 2018 i find it informative i really appreciated it

[@Автодедукция]

Hi Dan! Thanks nobody decided to change the engine to a new one because of that fault! Many thanks for your video!

[@robertmcgee141]

Where do we find smart guys like this in our towns? Diagnostics is the hard part many times.

[@Diagnosedan]

They are there! You just have to find them!😉

[@johnhnetkovsky8917]

When you were cranking and cranking and cranking........I was yelling check the ECT sensor!!! couldn't you here me!!?? ha ha. sounded like a mid 80's G.M. with a skewed sensor.Know that sound. Merry Christmas Dan

[@Diagnosedan]

I heard you!😉 Merry christmas to you and your family John.

[@jasonc.4683]

Everytime I see ur videos and that music comes on I drop everything and start going nuts in the shop.🤣🤣. I know I'm not the only one. Nice fix. Happy holidays

[@Diagnosedan]

Ha ha ha I would like to see that!🤣🤣

[@aaronfischer7199]

Amazing this video was posted in my feed today. Had a similar but reversed problem. Engine is cold, temp sensor was reading correctly. But injection time under cranking was over 36ms. Extended cranking would bring down to 22ms with the engine almost starting. Adding a resistance substitute wheel to the cts connector and bringing the measured temperature to 94c the inj pulse dropped to around 10ms allowing the engine to start and run. Further testing showed the pullup resistor in the ecm was faulty.

[@Blackmage50]

I do love the happy atmosphere you channel has! Keep up the good work!

[@Diagnosedan]

Thanks Billie!😊

[@kaistlouisss]

Excellent channel, good video, audio and editing. Clear and straight to the point. Great work Dan

[@Diagnosedan]

Thank you😊

[@RJMaker]

I knew when the music started It was going to get real!.. Thanks for the video Dan.

[@Diagnosedan]

🤣🤣 Thanks for watching!

[@michaelproust7891]

Thanks for the precise and exact information, that other channels leave out. The IAT gives the ECU information to decide what to do at cold or hot.

[@memphisautodiagnostics4136]

Happy Holidays Dan.... as always Dan showed'm how its done .......AGAIN!

[@Diagnosedan]

Thanks! Happy Holidays to you and your family Hans👍

[@murple8467]

On older cars there can be two coolant temperature sensors, one for the instrument cluster and one for the ECU. Thank you for a great video.

[@jensole2617]

Hi Dan... really enjoy Your videos... and the way You work in a methodical way! I had (nearly) the same fault on my Opel Astra H from 2005... BUT there's no temperature gauge in the dash... just a warning lamp when the temperature gets to high. So I had to dig a little deeper, and used my scan tool and reviewed all the data, and quickly stumbled over the temperature sensor reading almost 80°C... when the engine was cold! It just goes to show that You MUST use alle the available scan data in a smart way and not just look for error codes... cause there were none in my car too. Love the way You teach us to work smart - not hard, and hope a lot of "skilled" mechanics learn from You... it will save the customers a lot of money!

[@Diagnosedan]

Great find! Scandata is very important!

[@LastRonin101]

Soon as you cranked that engine I immediately shouted coolant temp sensor at my screen 😅 fitted many at roadside to vauxhall/Opel's.

[@randalldalton5475]

Good video. You sold me on a resistance box. :)

[@Diagnosedan]

Thanks Randall

[@rickowens4397]

When you were trying to start the first two times, I was yelling "Choke It!" Forgot, no carburetor!!! 😃😃 Thanks. Loved the vid. Fröhliche Weihnachten

[@Diagnosedan]

I couldn't find the choke 🤣🤣 Thanks Rick. Merry christmas to you and your family!

[@raycut8998]

pump that pedal vigorously---- those were the days,mate

[@mwanjebashir7379]

My teacher thanks 🙏🙏🙏 every day even if I don't have any diagnosis machine but at least learn something

[@aviator1683]

Merry Christmas Dan Your the master of diagnostics I’m glad I came a cross your videos on KZbin thanks for sharing your knowledge it has help me a lot I’m in the automotive repair business I never attended to any class basically I learned as I go by myself and let me tell you KZbin has become my best friend I been learning a lot thanks again and hopefully one day will have the opportunity to meet you in person Once again merry Christmas to you and your family

[@Diagnosedan]

Thanks for the kind words Hector 👍

[@markhammer9975]

It is amazing that the other shops wouldn't have noticed the temp showing hot when it was not. Attention to detail is important

[@jennifer06131]

Now previous shop will replace all temperatures sensors on hard to start symptoms. Lol

[@Diagnosedan]

Next time the wipers don't work they will change the temperature sensors 🤣🤣

[@mrgrumpy5116]

@@Diagnosedan maybe one day soon it will be necessary ...

[@JoesAutoElectric]

Great diag Dan! Amazing how simple things like this are overlooked. I had a Toyota that had an intermittent stall some years back. Parts were thrown at it left and right by 2 shops. It came to us and the customer warned us that it was very intermittent and random. It took us a while to actually get it to act up, but when it did we caught the coolant temp dropping to -40 and then verified our sensor was at fault. No codes in that vehicle either, which made direction more difficult like yours. At least you had the gauge showing incorrect readings. Great catch & great work on your videos.

[@roxanneabbott8424]

Diagnose Dan did it again! Great video!

[@danthemann6565]

Great video. I always keep a Decade Box and a couple of multimeters ready to work. The value of understanding Ohm's law and interpreting the data you get from a multimeter.

[@comingundone27]

Very good video again sir! Love the bloopers at the end as well!

[@Diagnosedan]

🤣🤣

[@richardostrowski6420]

Great video DiagnoseDan as always. The only thing that I can add is that you need to know the type of thermistor you are working with. An NTC has less resistance as it warms while a PTC has more resistance as it warms.

[@Diagnosedan]

A coolant temperature sensor is (almost) always a NTC thermistor.

[@mikembz1]

Danny thank you sir for sharing you knowledge.

[@Diagnosedan]

Your welcome!😊

[@michaelmerta8956]

Super cool to learning more about diagnosis of cars, thank you Dan

[@roybm3124]

How can a shop look over this, incredible. Thank God i have my own scan tool.

[@Diagnosedan]

🤣🤣💪💪

[@AddictedtoProjects]

What winds me up is this; the customer probably had to pay for all those 'extra' parts and labour, even tho the other shop couldn't figure out what was going on. Awesome Diagnostics Dan. Really enjoyed this!

[@Diagnosedan]

@@AddictedtoProjects I'm not sure what they charged🙄

[@NASHonPS3]

Incompetence......

[@robertpsotka3525]

That electrical connector kit is worth it's weight in gold

[@eriksarkisian6129]

I admire your videos Dan. Hello from Russia and USA. Very helpful info. Super. Отличные видео. Масса полезной информации. Супер.

[@Diagnosedan]

Thanks Erik!👍

[@samuesoeilyoriy6581]

great video and explanations on how temp sensor works

[@Diagnosedan]

Thank you!

[@mrb1864]

oh man that was an easy one, temp gauge almost made it idiot proof ! I made my own in early days with rotary switches and resistors and variable resistors. Just some plain old resistors harvested from dead electronics good way get going for zero investment ... Merry Christmas big Dan 🎅 and Family 🎄

[@Diagnosedan]

Thanks and Merry christmas to you and your family!😊

[@Parknest]

My 2004 Vectra C had trouble starting but it was the opposite. It never got up to operating temperature so the ECU was constantly dumping extra fuel in the cylinders because it thought the engine was cold so the spark plugs were sooting up because it was always running rich. A new thermostat and a clean of the spark plugs fixed the problem. Being the Z18XE engine, the coolant temperature sender was included with the thermostat. As a DIYer, I would've earthed the sender wire to verify that the gauge was working.

[@Diagnosedan]

Bad fuel economy 🤣🤣

[@istvanmeissler2238]

Excellent video, as always. Thank you for sharing your knowledge. You are helping many men become better and smarter mechanics. May God bless you and you family in this new year. Also, if you and your family ever visit the US, you should let your viewers know. Many people would love to meet you in person.

[@Diagnosedan]

Thank you! Merry christmas to you and your family!😊👍

[@javaidiqbal831]

A Great teacher. Love the way he is going. I m new on your channel. Really i am enjoying your channel and getting knowledge as well. This is my wish to work with you.

[@ianking9750]

A very Merry Xmas to you and your family Dan. Thank you for an extremely informative and educational year of videos. I have learnt an awful lot from your videos. The best diagnostic channel on KZbin by miles or even kilometres..🖐️

[@Diagnosedan]

That's a great comment! Thanks for that! Merry christmas to you and your family!

[@joseantonioperez8273]

Merry christmas Dan and all of you🎅

[@Diagnosedan]

Thank you! Merry christmas to you and your family!

[@aor3200]

Very good work again, i really like your videos. I cannot understand how previous shop missed so obvious sign what is wrong.

[@kevinvandevelde9789]

excellent way to check it with a vom funny out take clip, Keep it up can't wait for new vid's

[@Diagnosedan]

Thanks Kevin😊👍

[@drlgmud1]

Another fine fix big man. Keep them coming.

[@albertdelosreyes7163]

That sense of humor.Love it!😀 Merry Christmas Diagnose Dan!

[@Diagnosedan]

Thanks Albert merry christmas to you and your family

[@harrywilson4311]

Great video dan, that bypass tool earned its money here! Happy new year

[@Diagnosedan]

Thanks for watching 👍

[@ozzstars_cars]

Dan is the man! You know a hot temp sensor when you twist one. 😜

[@Diagnosedan]

🤣🤣

[@PineHollowAutoDiagnostics]

LOL

[@shaishavshah5114]

Love your cool and calm approach....stay blessed and continue doing great work...

[@v4vauxhall498]

Nice one yet again Dan, you could of course use the pot in your terminal kit also. Regards Joe

[@Diagnosedan]

That one is broken🤣🤣 only used it twice😱