Honda Jazz 1.2 misfiring on 2 cylinders... Fault finding and repair.
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- เผยแพร่เมื่อ 26 มี.ค. 2022
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Hi
This car came to me with a misfiring on cylinder 2 and 4...
This clearly, after someone had already swapped coils, injectors...
After diagnosed the issue, things did not went as planned... but got there in the end!....
Follow me on this video to find out what was the problem and how to resolve it.
Video for programming the used ECU:
(To be updated once the video is published)
Hope you enjoy the video.
Any questions or comments put them below.
Like always, thank you for watching! - ยานยนต์และพาหนะ
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I had one of these to do. Misfire on cylinder 2 , scope showed no control signal from ECU and inspection showed blown Mosfet. Fitted a used ECU and all was good for a few days, then misfire came back. Further investigation showed actual cause was a shorted injector that was killing the Mosfets.
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I was wondering if the injector resistance had been checked, thought maybe I missed that part.
@@alanw5879
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At least you don't have people give you a part with a different part number inside the shell, drove me crazy for 2 hours until I oped the part and see the difference. Drove me nuts and learned a big lesson.
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That's definitely worse...
Great job Louis, i see myself in this situation with scrapyard parts.. people will do anything not to return the money on a faulty part.
Indeed...
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Nice one Louis, I really enjoy your videos.
Thanks!
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well done, you will get another and hopefully recover a little of what you lost, good experience 🤗🤞
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Absolutely!
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I had same problem thanks to you
I bought ECU kit changed it job done
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New to your channel but enjoying it very much. Thank you for the great content and sharing your knowledge and experience.
Thanks!
Hope you stay...
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The man's a genius, trust me you'll be hooked
@@tonyrice3348
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@@tonyrice3348 Already am my friend
it's amazing how you quickly narrow the problems down to just 2 or 3 possibilities. Your experience of buying used parts is a big problem for me we have been selling used Peugeot and Citroen parts for 12 years now unlike most breakers we concentrate on 1 car at a time we go over the full car before stripping it if in doubt about any part it goes in the bin the bad guys are making life difficult for the good guys instead of looking on eBay for a bargain have a go to for different things you can trust
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If I were the customer I wouldn't mind I would just be happy it's fixed no matter what it costs because I'd know you do a good job
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Always learn a lot from your videos..You probably saved the customer a few £ and the fact the ECU was faulty was the sellers fault would have happened to the customer just the same. If he had gone to honda £15 would have been the least of their worries
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True...
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Great work as always luis
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Thanks!
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Spot on Luis. I am wondering whether the ECU seller (or someone further up the line) decided to scrap the donor car due to a misfire that persisted after replacing the coil packs, thinking it was something mechanical. They should have brought the car to you :D
Also, fully agree on the new used parts policy. Let returning faulty parts to the seller be the customer's problem. You are a tech not a dispatcher.
Wouldn't surprise me the the ecu came indeed from a scrapped car suffering from the same issue...
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Great Job as Always louis.
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Thanks!
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Great job ...you are the best man .
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Great video👍
I know how it feels when opening these Honda ECU's, the glue or RTV they use is concrete hard & a little wrong angle can damage the circuit board easily, very critical😉
Thanks for sharing Bro, Great work Stay Safe👍
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Indeed...
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Thanks luis, another great vid. They looked like the same type of mosfets that would be used in a laptop
Indeed...
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hi luis do you do repairs by post?
Not really...
I like to test what I repair... bit tricky to do it by post...
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Great video Luis. I anyway don't buy pieces from the breaker myself. I let the client deal with that hassle just like I do not buy the cheapest spare parts available. 😂I like to sleep in peace.
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I started doing the same around this time... with a few exceptions only...
It is indeed less hassle... even more for me doing this as a part-time...
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Another great video 👍
Thank you!
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Great job and yes yea are right about used parts put new parts can be broke too 🤯
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That's also true...
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Hi my dear friend great job 👌
Thanks!
Another great video. Aliexpress is the best pleace for shopping :) must be patient and order in advance a pack each most common eeprom's, drivers, transistors and mosfet. There is hundreds of types but in small amount isn't expensive. It's always took time to get UK, no different to Poland, top record was 4 months, I thorough someone walking with the parcel across China :) . In real its no chance to buy most specific elektronics even online in UK or EU. Always from China, or keep a pallet of motherboards on the loft from old computers:) bootfair every Sundays Louis :) :)
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Yes... every electronic devices I throw away, I always dismantle them and keep the boards... 👍👍👍
I'd appreciate your opinion I had pp2000 for a good few years then 3ish years ago it gave up and having a snap on around I didn't sort it out it was a good tool painfully slow but good I'd like to get the latest version and cable looking on eBay I'm unsure I've been told it works great if it's on ssd
Good job
Thanks!
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Bom domingo e fizest um good job👍
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Obrigado!
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hello just wonder where you located as im facing the same problem with P0303 code :(
You are full of knowledge I wish I had that.how can I learn this staff?
Self taught...
Learning as I go along...😋
Thank you for watching and for your comment!
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the discoloration did show . are there a triac due to the voltage spikes from the injector
There's an entire batch from 2013 to 2015 for ford Ka, of faulty ECU coil drivers, you buy a brand new ECU and still have your misfire,. Third party companies are doing a better job of replacing the drivers now, this issue made my own Ka unfixable at the time, but luckily became the dealers problem
Have not had that one... yet...😋
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The Best chanel
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Thanks!
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Thanks Luis excellent, ur da best in that,,👌
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Hi there Luis my Honda Jazz,, topdon OBD2 says error in communicating with,ECU,,car was driving no prob,,key light flashing and engine light on ,, any suggestions,,,.????
Well, check the basics, powers grounds and communications at the ecu plug...
If all good, could be a faulty ecu...
Thanks Luis,, I've checked all ,, I've got 5vlt reference at all except for at all 8 pencil coils only 2.2vlts ,,, scan tool says error communicating with ECU,,??? Thanks 🙏
Look, if the tool is not able to communicate with the engine ecu, you either have a power issue, voltage or ground missing or weak, a communication problem, shorted can lines, or broken, etc... or, you have a bad module...
Usually there is not much more to it...
It could be the tool, if you have the possibility, try to scan it with a different scan tool, if the same problem, then as above...
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Thank you for the useful video. Please Question. Citroen and Peugeot 2004 . Cranking but not starting. Tow cars they have the same fault. What the reason to read the ecu fault but can't delete it ?!
Immo ?
If you can't delete a fault, usually means that the fault is presente, so unless you repair the problem the fault will stay logged in the ecu...
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Great job as always!
In your opinion, is it better to get a bulb test light instead of LED ? On one hand it loads the circuit, on the other hand can it damage something (for example, when testing signal wires) ?
Hi
They both have their correct use... As far as you used them on the correct circumstances, should be ok!
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@@LMAutoRepairs Thanks!
Hi
The probability of two transistors failing at once is infinitely small. Makes me think something else causing that problem. A second ECU with same problem... I guess manufacturing defect
Thank you my friend.
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thanks bro
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But the question is, what kills the transistors? Could it be the injector short circuit? The transistor usually would not go out on its own.
But strange is, the other ecu had most likely the same problem, from 4 identical channels the same 2 are faulty on two ecus. Looks there is something in the car harness so it tends to make intermittent shorts on the same wires? The lower resistance of the one injector could be a clue - isn't it on its way out (shorted turns in its winding,...)?
Maybe a bad factory design with the wiring loom and shorts to ground, injectors, or a bad design of ecu pcb, poor heat disipation of mosfets or wrong calculation of amp/ma switching output power..
The same type of transistors fail all the time in laptops. Just manufacturers using low quality parts IMO.
I've done a few of these with the same faults. A used perfect ECU or perfect repaired ECU will still fail after a while. The injectors cause it. Don't get me wrong, the transistors in the ECU aren't up to the job to start with, couple that with injectors that have some aged coils in them that have shorts between the windings, not dead shorts but enough to increase current draw while still working and you will have a repair that will be back. Always put new injectors in.
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So far still going...😋
Will see what happens...
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@@LMAutoRepairs Hopefully mate. A few do survive 👍
My brother, I have a Honda Jazz automatic 2003, while driving, the rpm when it reaches 3, the rpm counter rises with a strong hum and the gear slips, and I have a p1887 code. I replaced the speed sensor and replaced the solenoid valve, but to no avail. Please help. Where is the problem?
Thanks
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hello I need help I have an auto voux insignia 1.8 after the repair of the sale I am the timing gear, head, cylinder all from the crankshaft and after the renovation all the time crashes the wrong position of the gasoline crank with the exhaust fight the ignition is well powered, it fires hard and the engine works unevenly, it crashes errors PO366.P0300 and P0017 I no longer have the strength for this car or money, please help
Hey luis, ive got a 2002 1.2 jazz and im having problems like this. The car loses power for a split second and comes back on and during this the engine light flashes. But there is not permanent engine light. Checked with diagnostic tool and no codes come up. So i took it to two mechanics and they told me problem is electrical. And electrician told me its ecu. But could it be the ecu when no codes show up. As in ur case u atleast had some codes come up.
Anything is possible...😋
It is difficult to tell without proper checking...
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Heyy Luis, it s Sunday and still waiting for a new video 🙋♂️
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Just posted it...
Hi there,
my jazz 2012 EXL have the same problem when i am driving 70mph for sport mode.
cylinder 2 was misfire, i inspected that cylinder 2 injector was fail (0 ohm). i replace it and the p0202 p0302 come continue
Check that the ecu is actually pulsing...
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@@LMAutoRepairs i opened the ECU and use the DMM with diod mode to confirmed transistor no. 2 was dead.
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My car is Honda Jazz 1.3, petrol. My car is facing problem with P300, P302, P303 (Engine check light blink is the only symptoms I notice) for about 1.5 months. Recently, I changed 6 ignition coils out of 8 and 8 spark plugs. Despite, when the gear is shifted to 3rd or 4th or 5th, the engine check light is blinked. Apart from this, there is no other problem. Could you suggest me what to do to solve this? My mechanic is quite unsure why this is happening! Now, he is saying it may be due to injector problem.
It might helps...
th-cam.com/video/CrQEmQs0cNk/w-d-xo.html
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Have u any of the SSD103 TRANSISTORS ? I need one atm
I might have a couple of used ones... but unfortunately I'm not selling them... as you know they are difficult to get hold of...
Sorry...
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8 coils on the DSI i cleaned 80 connections on the coils they needed it but it turned out to be the MAP
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Hi there I am wondering if you can shed light on this where so many others fail. Simple question. Renault Captur 1.5 dci when key is in card reader and dash on, should the injectors read 12v or 4.7 as they do?
Hi
I am working nights... just know was going through the messages...
Is that the piezo injectors?
If it is should have no voltage at ignition on... as far as I am aware... as they are high voltage...
Can you scope them while cranking?
@@LMAutoRepairs This is Renault Captur no start after stop start engaged at traffic lights. Fuel pump is merely a relay driven affair via ECM. ECM grounding the power going through relay and on comes the pump. Yet this car 1.5 dci diesel does not start. no low pressure diesel coming out pipe from fuel filter yet at start momentarily you see volt drop to 10v on feed to motor. Injectors you see they are at 4.7v and stay at that through cranking. Ground side stays at that too. No grounding of them. So ECM likely I think to be faulty. checking powers and grounds and signal wires next. scope on data sheet from haunts workshop data shows whilst engine running 12v for the injectors. But at crank should they show 4.7?
@@jamesbarratt593
I guess that the strategy is if the fuel rail pressure is too low, the ecu will not fire the injectors... what is the pressure at the rail during crank?
I guess is low, if you have no fuel on the low pressure side...
@@LMAutoRepairs well I did take a horse syringe full of diesel. Injected to high pressure fuel pump and tried cranking. Diesel not being sucked through. Im going to remove the fuel pump under back seat and test it with power probe. Im sure it works. We shall see just remember zero fault codes saying low fuel rail pressure.
@@jamesbarratt593
But check live data...
That's always more intuitive than the codes alone... 😊
How to contact you, please? I have a job for you with Lexus gs250 programming issue.
Hi
Ist ecu part for car manual transmission the same as an automatic transmission? If they same part number Please
Not sure...
But on these, usually they are different...
@@LMAutoRepairs 🙏🌺
I have similar problem one cylinder misfire but no ecu faults everything was checked coils spark plugs injectors idle rpms 650 and misfire only happening when accelerating from 2500rpms
Engine K24w Honda
Do a compression test...
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If this is your part time/hobby job, what is your main job if you don't mind me asking?
Nothing to do with cars...😉
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why are honda building products to such fine running tolerances to failure a slight upgrade in driver spec would make there cars more reliable as 2 out of three ecu s you had the same fault the injectors was only tested not replaced what caused the fault to no 2 and no 4 x 2 ecu s again thanks for the vid louis
Cutting/reduce production costs I guess...
Or, just a bad design...
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Hi mate i have misfire on cylinder 2 and 3
Changed coils and spark plugs but no luck, car misfiring when could, when worm cars idling perfect, but when i accelerate starts misfiring
When i checked live data on ckp sensor no reading at all 0 reading changed the sensor no luck, friend said could be faulty ecu, any idea thanks
Could be a faulty ecu indeed...
But you need to do some measurements rather than just replace parts...
Check wiring, check that the ecu is pulsing the coils and injectors...
Check also injectors, ensure that ars working fine...
The no reading on the ckp is strange... could be the tool you are using though...
Any codes for the ckp sensor?
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@@LMAutoRepairs hi mate thanks for replying
No codes for ckp, only p0302 p0303
P0300 engine check light some times flashing sometimes steady
@@alisaad8116please where you able to resolve the issue ?
Location mate
I had honda fit 2006 ,and my engine check is on the display ,and after computer diagnostic it's show 4 cylinders erros ,but car work normal ,whath is possible problem .
What errors?
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@@LMAutoRepairs sorry for mi ignorance but I'm a customer and don't take a picture of the errors,so the mechanick clean errors and say to drive until engine check light again and to see again on computer,I have problems whith accumulator battery ,so I shall go again when this Chek show up again.
@nwaicecube5215
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Can you help me same problem in my car
If the problem is the same, the solution is on the video... how exactly would you like me to help?
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Hi
is it important to do a program for the new ecu ?
The car will not start if you don't...
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@@LMAutoRepairs where is your garage please?
@@bderbder9510
I don't have one...
I do this as part-time...
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@@LMAutoRepairs i have exactly same problem i spend until know £1000 i replace everything 4 injector 4 spark plugs 4 coil and throttle but still same issue
Have you checked that the ecu is commanding all of that?
Your a very nice guy, but you should have the prices for this king of job right, not low charge. Ask the dealer how much their will be charge for the same jobs. Because this kind of job it's should be a great paying for you.
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Why not take the good transistors from the faulty second hand ECU and replace them in the original car's ECU?
And thus avoiding the hassle with sending it back and losing money on postage and looking for another spare ECU, and finishind the car in a shorter timeframe.
Since it got a spare second hand ECU anyway, what's the difference? I'd say the second second-hand ECU is prone to failing the same way the other ones did, but might do it quicker than one with replaced transistors.
Yes... was a possibility...
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a ticking time bomb how long would those components last as they are from same batch ?
@@jackiemay9471 I answered that in my comment. How do you know (and can you be REALLY sure about this) that the second second-hand ECU doesn't have the same components from the same faulty batch? ...
@@guest9169 the two faulty ecu s had chips fail from batches threres a chance the last one may have come from a batch before or after less likely to fail i would have put the decision to the owner of the car as i would not warranty unless new you could end up with a boomarang
You don't...
I guess you replace them and hope they don't fail...
Only two have failed on the original, and two on the other one... so, the other two that didn't fail might last...
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Those transistors look brown in the middle and left one
I love you :D
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I have a Peugeot 207 1.6 hdi with egr problem p0490 p1162 , I changed 5 egr end the error still the same the car no pull no torque like 60hp any idea? I don’t no what to do it have no power, no engine lights only on scanner is the error present oll 5 egr same problem
Any idee
A few things popped into my head...
The EGR replacement you used, genuine or aftermarket?
Have you checked wiring, and voltages at the plug?
Egr original and yes I checked the wires all good, somebody told me is the ecu need to resoft I don’t no, if you want sent you the error but I don’t no where to send
End this error make engine in limp mode ? No power ?
OK... Have you measured powers and grounds at the EGR?
My guess is a ECU driver fault that controls cylinder 2 and 4 .
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That engine harness looks a right mess
Indeed... I hate when people just don't put things back together properly...🤷♂️
@@LMAutoRepairs Ya it be fair annoying.
I was asking myself,what is you,re daytime job? And why don,t you work as a diagnostic specialist?
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Life throws things at you, that are not always what you wanted or asked for... and not always gives you the opportunities you would hope...
I would say the right opportunity never arised...
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Part of the reason why I gave it up .I do regret it .but I'd never afford all the gizmos that you needed to check the cars
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It is tricky sometimes...
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And also people to bring cars to you with more fuel ⛽ 😏
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Faulty parts should be returned for free - the ebay seller is responsible for return postage.
Should...
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