How to fix Isuzu 1.7L EDU 8971891360 , 8971891361 , 8971891362 - Diesel pump EDU/ECU
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- เผยแพร่เมื่อ 1 ต.ค. 2024
- The following video is about how to fix some of the problems in EDU. This unit was fixed before for a technician who couldn't remove the PCB and just followed some of the advices from Internet. But more job was required. Using the right tools, process and commun sense, the final result was bad devices found under the PCB.
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Hi do you have circuit schema for this? How do you know which goes where ?
Dear friends, Denis asked a good question. This is the general answer for most ECUs: The digital ground is insulated by capacitors to the chasiss ground. There will be more then one 12V input always with a reverse diode protection and/or serial diode and big capacitors. There will be parallel small smd capacitors to main powers to filter noise, one or more voltage regulator reducing from 12V to 5 and even 3.3V. There are mosfet transistors making a power control per channel for 4, 6 or 8 cilinders engine. Most cases just one mosfet transistor is the serial main switch to all the power transistors for injectors. New ECUS uses switching power supply for power transistors, and its main capacitor must the measured. Another power channel with mosfets will control the high voltage coil in its primary. AND make sure all the pins in the main connectors are clean and good conduction to the mainboad. :-)
Hola, lo primero agradecerte tu molestias por enseñarnos con tu videotutorial.
Yo de inglés no tengo ni idea, di por hecho que los transistores eran el IRF840 y IRF540, si es así puedes decirme a cual corresponde el 9732, porque no fui capaz de desoldar algunas patillas y se rompieron al abrir, ahora tengo que cambiarlo, pero en la tienda no conocen el 9732 ni tampoco los otros que pone 7446, ayudarme por favor.
At 9:45 is a linear voltage regulator 7809, have a nice day!
Thanks! Because I truly don't remember and many people would wonder about it.
Bob. Kalpon any time my friend, i also have few repairs on my channel, including 1.7 EDU, i have almost 10 years since i repair these type of controllers
Thank you very much. Bob si estuviera en español sería un puntazo, pero de todas formas con los subtitulos se entiende perfectamente. Ahh ojalá subas algún día la reparación de una ECU del opel astra g 1.6 que es el modelo de mi coche.
Gracias de nuevo crack.
Thanks a lot, but feel some inconvenience with your red negative probe and black positive))))
Yo are right. (I plugged the negative and positive wrongly in the tester). Some where in the comments history and in some emails I talked about it.
Thanks.
you know. nice movie, but it seems to me that you are deliberately misleading people by connecting the wires to the meter in the opposite direction !!! black with red, and at the end of the movie you can see it attached well. I feel sorry for such people !! what did you want to advertise with this movie or help someone ??? you also emphasize where to connect black and where red when taking measurements. think a little man !!! ! greetings
Hi man I tried to measure that big capacitor. With normal multimeter but is giving me low reading.
thanks for your fast answer, I´m from Spain, but I don´t find the ref. of this double diode
How can I find this ref?
Un saludo, ya se que hablas español
Hola! Si, un idioma maravilloso. Mi abuela lo hablaba con acento espanol. Yo aprendi un espanol mas latinoamericano. Por favor, escribeme a kalponelectronics A gmail, y veamos que podemos hacer para sustituir tu diodo. (Estoy en Europa ahora). Es tu coche o de un cliente?
Very good and informative vid. I have a question. Those first datasheets are datasheets of original parts and second ones are datasheets of modified and stronger parts, right?
IRF540 Rds(on) 0.077 Uds=100V(!) Id=20A Idm=110A
IRF840 Rds(on) 0.8 Uds=500V(!) Id=5,1A Idm=32A (it is very close to BUZ91 spec.)
It is producing 130V spikes so i dont know if Uds can be 100V. I'm waiting for Your response. Thanks in advance.
forum.opel24.com/uploads/post-14195-0-79107000-1306511475.jpg
Thank you very much for this video!
Here I've exactly the same EDU. It was opened by another technician before and a couple of small SMD components are missing. Could you tell me their codes please?
I don't know how to post a photo here, but I could upload it elsewhere.
Hi can you tell me the names of the small yellow caps on the circuit
good day thank you for the video . It has been some time since it was made and it would appear that still these EDU systems are troublesome . Please advise on my unit it was working but i felt it best to take it off and conduct some maintenance work on it, in opening the unit i have found that the tantalum capacitor 106 35k has blown close to the connector which is connected to 25P06 R550 transistor, i have seen so many of these EDU with blown tantalum capacitors ? What can be an upgrade for this, might it not be better to install a 45v ot 50 v tantalum capacitor ? 10uf ?
i will hope to get a response from some one more knowledgable so i can order the components soon thank you in advance !!
Thanks Bob.
Could you say me the type (reference) for buy this transistors?
Thanks and regards
Hi! Last time I checked it, I found in Ebay the transistors set for it.
@@bob.kalpon1398 Thanks. I will try in ebay. Have a good day.
Highly knowledgable and informative, thank you.
Hi mate.
I am triying to fix my car's ECU. I have desoldered all the pins and remove the pcb from the case. I tested the MOSFET and double diodes but I think they are cutted, so if you could provide me the reference of this parts to replace them I would appreciate.
Thanks in avance!
Hi Bob, thanks for video. I opened my unit and found that the component on the right leg of 25PO6 on the bottom left hand corner is burnt. Is it possible to tell me what that component is and what its value is. It looks similar to the two white components on your video. Do you have an email address to converse easier?
thenks you very much! i change the mosfet with irf 540n the car works for 3 minutes and then the new mosfet crack again! please give me your advice about the problem??????????????? th
Congratilations... very technical with lot of patience to explain how the things really need to be done.God job and thank you.
I m in South Africa my 1.7 dti utility diesel dnt have Ref it only idle
hola,yo tengo ese vehiculo y me da exactamente ese roblema de los tirones,pararse el motor y no arranca hasta que se enfria seguramente el circuito
habria la posibilidad de este mismo video pero en español? gracias saludos
Olá. Sabes dizer me qual a referência do integrado que queimou nessa placa, é que a mim queimou a mesma, mas não consigo ver a referencia
Your probes on multimeter are opposite.
Thanks a lot, Bob for the detailed video. I repaired my EDU yesterday following your instruction. Luckily it was only dry joint on big capacitor and relay next to it.
Thank you for posting a clear and educational video. I used to be on the bench 20 years ago and I needed help and guidance. I am as yet to confirm the edu is at fault, but everybody says it is. Does the edu drive the pump relay, if so I would like to prove the pump first
Estimado, muchas gracias por el video, una consulta, el primer transistor que revisas de izquierda a derecha dices que es un regulador de voltaje, me puedes dar el numero de placa comercial para ese? o los voltajes de los pines? muchas gracias
good what is the spec of the orange capictor or prt number
Thanks Bob for nice explanation. I found some dry joints and re-soldered them. The car works 3 days and stoped again. all teh components seems to work nicely. I have to do some measurements with oscilloscope to find a problem.
Thanks for this vidéo !!!
Thank you for a great video, just wanted to add that this tutorial also works for 8971891363. Just finished fixing mine, it was a dried solder joint so nothing big.
how many degrees C does the hot air gun produce? What hot air gun do you use?
U helped me thank u ood man
hola bob. muchas gracias por el video. Te consulto. El primer regulador de voltaje del pin central al de la izquierda no tengo valor. los otros si me dan valores. Pero la primer medicion que tu haces no me da esos valores. Puede estar malo? Gracias por cualquier ayuda. Saludos
en españolllllllllllllllllllll
I have the astra g y17dt ,my ecu ain't dead ,but i watched your video in its entirety ,very good quality video . congrats
Thanks for sharing , your probes seem to be put in your meter upside down though,
Hola, sigo esperando respuesta, alguien sabe que componentes son, me siento super engañado, abri la ecu fui a comprar los componentes que pones al final del video y ahora resulta que no son esos o no se sabe a cual corresponden. Es una pena tener una ecu de pisapapeles
Excelente explicación lo felicito,Saludos desde argentina
hola buenas. muy buen video. escribo en español por que ya vi que hablas el idioma jejej. tengo una duda. que tipo de transistor es el numero 1, 3, y 5 ? por que trato de buscar el datasheet y no aparece, y claro no se como probar si estan bien.
Estoy reparando una ecu igual a la del video y tengo esa duda. de momento he visto un condensador smd y un transistor mosfet 9732 (el numero 2)defectuoso y ya los he sustituido, pero tengo esa duda con esos 3.
por cierto me ha servido de mucha ayuda este video la verdad.
muchas gracias.
Hola! Esa ECU fue reparada y modificada por alguien mas. Yo use unos transistores originales de otra ECU para que los videntes no se estraviaran. Pero los remplazos los hice conforme a la modificacion. La idea del video era como escontrar problemas en modo general. Toma en cuenta que un corto circuito en la bomba disel puede causar el problema y quemar los transistores en la ECU de nuevo. Si encontrastes componentes smd defectuosos, entonces vas por buen camino. Revisa antes y despues de elllos, trata de hacer un diagrama, porque te puede ayudar a determinar la causa del problema. :-)
Excellent bro!! Thanks
Good explanation and thank you for your time to do this video.
Hi, friend. You made very interesting video! Do you have any documentation for this EDU? I'm interested in the appointment of pins.
+Denis ZaicevHi!I didn't find anything about its pinout. It has 3 main 12V inputs. There is a big diode and a capacitor linked to them. The voltage regulator is a big chip in one of the corners far from the connector or the smd MOSFETs. I downloaded most of the chips and transistors datasheets. So you can do the same. I had to guess the voltage regulator number, and I found it because the pinout. REMEMBER that the power transistors equivalent depends also on the quality of the brand.
Denis, make a file with the datasheet in PDF format, about all the chips from any ECU you fix. It will help you in the future and save time to in another fixings. :-)
Thanks for the detailed answer, Bob. I'm not going to open EDU and fixing something. :-)
I'm just looking for an answer to the question "Who controls spill valve (SPV): EDU or ECU? Or EDU and ECU together?"
+Denis Zaicev Hi! The spill valve is related with a diesel pump. The answer "would" be the EDU. But in order to get the right answer, you will have to tell some more about the car's brand, model and year. ;-)
I have found the answer to the question "Who controls spill valve (SPV): EDU or ECU? Or EDU and ECU together?" But I would be interested to know your opinion. :-)
Car: Opel Astra G 1.7l 2002. Engine code: Y17DT
Brilliant video...very lucid explanation...Greetings from india...
Hi Bob,
on my EDU I found that the first chip in mosfet & diode row is significally different than others. It is the one with white writings, as you told in video. Chip´s body is not black, but its color is a bit more grey, looks like overheated or burned. Testing it I found that on one pin testing combination it fails. I can not find any datasheets about the chip, so I ask you for your help :) Do you know something about the specification of the chip ? Its codes are : 014 M07AD 31045. Thank you very much :)
Hi! The ECU from the video was modified. I am trying to get another equal to identify the transistors for the right replacement. I will update as soon as I can get ones.
Mine is 014 M07AB 31045. I also get different readings than shown in the video.
Buna! Ce mai faci? YES! After recording my video in the transistors test, I realized about the black and the red lead were crossed in my DMM. Also, the ECU was fixed before by somebody else, and it had some adaptations.
I liked your videos! :-) La revedere!
Hi what are you number mosfet
Graet and helpfull video! Thank you!
when reassembling the EDU in the car,
put some washers with thickness of 2mm between the pump and EDU
EDU to not be in contact with the engine
Remember the analog ground is different than digital ground in some ECU. It is very important to make sure there is a good contact between the ECU and the engine mass. (There should not be more then 500 mV between the negative of the battery and the ECU chassis).
sim josé toda a gente em portugal faz isso mas parece que lá fora estão mais preocupados com a impedâcia entre a massa e a centralina..pois a centralina funciona bem mesmo pendurada só pelos fios e sem o corpo dela tocar na massa...o truqe das anilhas resulta e toda a gente aqui o faz
Fix it with mechanical pump
Hi! By sure the vehicle will not pass the anual Technical Inspection. Most countries require highest standards what narrows the repairing job to professionals. Improvisation or adaptations are not in fashion anymore. Even the right to repair had been changing, because now days, the new vehicle's modules must be programmed for recognition by the ECU. So, in a short future, a 2nd hand part can't be added without the right to reprogram the main computer in the car.
Thank you for sharing this knowledge of yours
Хорошее замечание о перемычках, которые кто-то паял до этого.
very nice video, thank you i enjoyed watching.
hola como estas? tendras el diagrama de conexion de este modulo, quiero hacer el banqueo del mismo.
Hola Pablo! No. No lo tengo. No me especializo en ello. En realidad reparo en forma eventual en electrónica general. Usando Google, y dedicando unos minutos, podrás deducir la mayoría de las conexiones. Un consejo sabio para ahorrar tiempo será intentar deducir la causa de la avería concentrándote sólo en las áreas que necesitas. ;-)
Good video, very understanding.
Thanks
Hola amigo excelentes tus vídeos recomiéndame un osciloskopio y multímetro p reparar y chekar tarjetas electrónicas d las ECUS automotrices gracias y donde consigo información d los pin out y d diagramas d los circuitos muchas gracias
Hola! Feliz año nuevo! Sin dudar te recomiendo Siglent. Para ECUs no solo encontrarás problemas de señal análoga si no que tendrás que lidiar con transmisión de datos. Los nuevos coches cuentan con varios módulos electrónicos independientes y se comunican por bus de datos. Las nuevas normativas minimizan cableado y están usando fibra óptica para el bus de datos. Tu nuevo osciloscopio debe de tener decodificador de datos como el SDS1104X-E. El multímetro debe de ser mínimo de 4,5 dígitos. Recomendable 5.5 dígitos, pues hoy día hay más sensores y extras fuera de la ECU donde todas las señales son señales débiles, en el orden de decenas de mili-voltios. Para señales en el rango de 12.0xx,X Voltios, notarás que el multímetro de 5,5 Dígitos está en el rango que cubre las necesidades del oficio. Lo mismo aplica para electrónica industrial, o TV plana... Te recomiendo el SDM3055. Copare precios y te darás cuenta que te da más equipo, rango y funciones por menos costo que la competencia.
@@bob.kalpon1398 gracias amigo por tu ayuda y recomendación y donde los consigo doy d México feliz ano nuevo.lo.mejor p ti y tu familia sobre todo en salud espero contar con tu amistad por muchos años
@@bob.kalpon1398 gracias por tu ayuda he información y p pin out d las ecus donde lo consigo i d los circuitos , feliz año nuevo espero contar Kon tu amistad
I have this problem, i have fixed it 3 times , it works for sometime then again the same issue is comming, do u know from where the issue is comming? Whats wrong?
Hi! Let's know that most ECUs get damaged by wrong injection pomp system. There could be other electronic module in the pump, that makes damages to your ECU. It could be one common of several other reasons.
Bob. Kalpon , thanks a lot for your reply,
I have changed this edu unit, its used but never touched inisde means not opened to fix or something,
There is a bosch pump sensor that is allowing fuel to get outside and the fuel is going to edu stick , can feul cause this problem? Tomorrow im going to change this sensor to prevent fuel going to PC.
Some times the problem's origin is the pump itself. Most transistors in the ECU burn because the load is getting in short circuit, in the pump or injectors. It is like audio amplifiers, where we change several times output power transistors and at the end of the day, we find out it was a defective speaker that works fine until it overheats again, making shorts and burning the amplifier's outputs.
Brilliant buddy, thx :-)
hola.. en español por favor..! gracias!
Tienes esta reparación en español?
Where can I to buy the double diode for edc ecu opel?
Hi! It depends of where you are. Best electronics component suppliers are located in each country capital city or main cities. Other source can be Ebay.com
Thank you for this video
graaaciiias ya comentare algo
OUTSTANDING!!!!!! VERY GOOD JOB!!
+Christian Arancibia Thank you! I never mean to be a teacher. But, through the time, I saw people's need of knowledge. Some of them want to do their tasks right, and anothers need somebody to "teach them to fish". Then, my videos can help in somebody's problems, or just help in a technician's table to feed his or her family.
Thanks again for your comment. I am willing to accept any feedback from everybody to make TH-cam the "Alexandria Library" everybody wished and need. :-)
I just got the same module you are fixing, can i ask you for any help if i need it?
+Christian Arancibia Sure! If I could, and I had the resources, I will be willing to help you. Just tell us what did you find bad. We can help another friends in the future too. By the way! There is another Mosfet transistor on the PCB sourcing the ones I changed. (Check it!) ...and the ones I changed have a small SMD FET transistor conected to their gates too. Remember, every case is different, and anything can be bad. :-)
I found a blown up capasitor i replaced it and it worked fine
+Christian Arancibia Congratulations! I am happy for it. :-)
Молодец!!!
Так держать коллега!
Удачи!