well been considering selling up if i'm honest but if i don't i would be interested.
Technical Seicento MPI Turbo ECU
- Thread starter woj
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Technical Seicento MPI Turbo ECU
its just financial woes, i don't want to sell it... Punto is up for grabs first anyway
i just cannot justify or afford a fleet atm 
shall be ordering some parts for her this month to get her ready for sale.
shall be ordering some parts for her this month to get her ready for sale.
So I got pretty far with the project, I actually got the ECU running on boost, in my laboratory of course. Things are looking really good.
But, while in progress of figuring out possiblities for Electronic Boost Control I managed to properly fry my lab rat (really long story, two days of hard work that ended up in a disaster only because my hands are not surgeon-quality stable), and I don't have anything to run tests on for the moment. (It's a good thing that I managed to learn really a great deal of things during the process, otherwise I would be doing this: :bang: :bang: :bang
So, if any of you have a spare IAW 4AF (M9 preferably, but M7 would do too) floating around (after 16V or MS conversion or something) for reasonable money, please contact me. I will of course check ebay, but I am looking for a more reasonable price. The ECU can be coded and full of DTC-s, but it otherwise has to be fully functional. And moderators please be patient with treating this as a classified
But, while in progress of figuring out possiblities for Electronic Boost Control I managed to properly fry my lab rat (really long story, two days of hard work that ended up in a disaster only because my hands are not surgeon-quality stable), and I don't have anything to run tests on for the moment. (It's a good thing that I managed to learn really a great deal of things during the process, otherwise I would be doing this: :bang: :bang: :bang
So, if any of you have a spare IAW 4AF (M9 preferably, but M7 would do too) floating around (after 16V or MS conversion or something) for reasonable money, please contact me. I will of course check ebay, but I am looking for a more reasonable price. The ECU can be coded and full of DTC-s, but it otherwise has to be fully functional. And moderators please be patient with treating this as a classified
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It happens to the best of us mate, I remember when I was fixing a £1500 Stegg amplifier once which I'd won for peanuts of ebay. I finally got it working and I was jumping for joy... then while jumping around I dropped a screw driver on it and blew it to smithereens. It never worked again, I'd already posted on a forum I'd fixed it, needless to say I never mentioned I stupidly blew it up 5 minutes later...
Anyway, please send Woj some 4AF ECU's, you know it's a good cause.
Don't be monkeys donate them or sell them for peanuts.
He needs to get this finished so he can start on maps for the micro ECU.
I'd love to help you mate but all I have is a huge box of SPI ECU's.
Anyway, please send Woj some 4AF ECU's, you know it's a good cause.
Don't be monkeys donate them or sell them for peanuts.
He needs to get this finished so he can start on maps for the micro ECU.
I'd love to help you mate but all I have is a huge box of SPI ECU's.
I have heard so many stories about screws being dropped on powered up motherboards to secure a freshly installed expansion card in the intention to secure it after checking that it works. Did practice something like this myself, but never dropped a screw.
Now it was different - I knew I was walking on a very thin ice. Part of the procedure to low-level reflash it was that I had to apply +12V on one of the CPU pins while the ECU was powered up. And I touched the pin next to it and fried one of the CPU ports and who knows what else. And the fact that I was doing it at 10p.m. or later did not help either...
I think a chip clip of some sort would work. But you see, the whole trick is there is a way to switch this +12V through manipulating ECU ports on the program level. I just could not figure it out yesterday which port/pin this is, so I decided to take the risky way of applying the +12 directly. And normally this low level flashing (had to actually write my own bootloader for that) should not happen often, only I messed up one of the earlier patches and blocked the normal Galletto access to the ECU. But a soldered wire is indeed a good idea, I was actually considering it yesterday.
Anyhow, the most annoying part is that I would have to reconnect all this, not that the ECU is fried:
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Hmmm you could do with a car side ecu connector to save you having to mess about hooking it all up. Good effort there though you've done a really excellent job.
My bench looks like a bombsite comapared to your working area.
It is indeed an SMD processor (at least its not BGA :yuck, if it's a generic part I could fit a new one for you as I have hot air and infrared rework, however logistically it's probably not worth the effort.
If you're going to probe things with 12v use some current limiting this should (hopefully) avoid you doing any damage. Also sometimes I find it easier to follow the track a bit a probe further away to limit the risk of shorting pins.
However I bow down to your programming awesomeness. :worship:
I do have the hands of an electrical surgeon but I don't have the brains of a programmer and I can't see the Matrix. I stuggle with Arduino and tend to use Logicator with PIC's because flow charts make sense to me lol.
Keep up the good work Professor!
My bench looks like a bombsite comapared to your working area.
It is indeed an SMD processor (at least its not BGA :yuck
, if it's a generic part I could fit a new one for you as I have hot air and infrared rework, however logistically it's probably not worth the effort.If you're going to probe things with 12v use some current limiting this should (hopefully) avoid you doing any damage. Also sometimes I find it easier to follow the track a bit a probe further away to limit the risk of shorting pins.
However I bow down to your programming awesomeness. :worship:
I do have the hands of an electrical surgeon but I don't have the brains of a programmer and I can't see the Matrix. I stuggle with Arduino and tend to use Logicator with PIC's because flow charts make sense to me lol.
Keep up the good work Professor!
Hmmm you could do with a car side ecu connector to save you having to mess about hooking it all up. Good effort there though you've done a really excellent job.
Yes, but the harness is usually more than the ECU. Will have to visit a scrappy though at some point and see if there is anything that would do the job.
My bench looks like a bombsite comapared to your working area.
Mine used to too, but it was getting out of hand, so I had to sort it out.
It is indeed an SMD processor (at least its not BGA :yuck
But I could certainly find somebody local to do the job, thanks for the idea (one that I was missing
) will have to look now for the part availability. Chances are if the Chinese make them, I can get them for 5 Euros per piece with free p&p. Yes, only today I found the other end of that pin, very accessible :bang:, but could not locate it yesterday. The problem was that on the CPU side the pin dives under the dice immediately.
Also, looking at the board today I see there are two placeholders for two drivers of some sort, two of which are alreday on the board. I am thinking this would be two extra drivers for coils? To have fully sequential spark too?
Certainly looks that way, it's a mirror of the circuit next to it. I'm assuming the other two are coil drivers. If you can locate two more or equivalents from the part number and find how to operate them through the 'Matrix' then you could indeed have sequential spark which would be awesome (but likely a complete headache to map). Would be a very cool achievement though...
However surely you could also fit a driver there, locate its operator and use it to control your boost solonoid? And then you could also have another spare for something else...
First, found a CPU on ebay, just confirming now that it is the right packaging.
Second, just realised these ECUs are bloody cheap in PL and I will be there very soon. So, the experiments shall continue soon enough
Second, just realised these ECUs are bloody cheap in PL and I will be there very soon. So, the experiments shall continue soon enough
Second, just realised these ECUs are bloody cheap in PL and I will be there very soon. So, the experiments shall continue soon enough
You best start stockpiling them then because they seem fairly rare in the UK. Do you know the dates when these were fitted, was it the last ECU type they used?
Edit: Quite a few on ebay, however I can't say I ever seen a Sei with one fitted. If you bought up all the ones listed I wonder if we'd hit a shortage fairly promptly and these are just about because very few people that have a car needing one. Also are all the Micro and SPI users going to have to do considerable wiring mods to use these?
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Any progress proffessor?
Guess you're enjoying the sunshine while it lasts too.
Guess you're enjoying the sunshine while it lasts too.
Yes, enjoying the remains of summer. But also working on it, the plain turbo version without EBC is almost ready, the things still to do very well defined and written down. Currently I am in progress of searching for free ECU/CPU pins to control the boost valve. If all else fails I will dump the A/C functionality in the ECU and reuse its pins, but here I also need to find out which CPU pins are these, this is not as simple as it sounds
If all else fails I will dump the A/C functionality in the ECU and reuse its pins, but here I also need to find out which CPU pins are these, this is not as simple as it sounds
Maybe you can work your way back from the ECU conector?
I could have done with your programming brain a few days ago when my Arduplane was playing up lol. I got there in the end although I'm sure it left me with a bald patch...
Anyhow keep up the good work.
Tried that, the problem is that lots of connections first go to another driver chip, ST's L9113, and this seems to be fully proprietary and not documented. So much easier way is boot load a small program that pulse flashes (or reads) CPU pins one by one and trace which ECU pin outputs the signal. A bit repetitive work, but very organised and exhaustive, just identified 5 pins in between the two messages I wrote.
