Technical IAW ECU Live Mapping & Tech Info

[AndreaRC]

Hi, in these ecus it’s not possible to have negative advance via software.
The only way to obtain negative spark advance is to move the VRS, as done for stock 18FD vehicles (-18 degrees).
In this ecu is impossible to have negative advance too, but actually the 0 value means -18 degrees and so on.

 

[dmatthew]

I have a problem with the engine stalling.
When I am in cut off mode, throttle on idle, engine speed above 2000 (I set cut off at 1900 rpm), if I disengage the clutch, the rpm goes down and the engine stalls.

I can't find the bit that controls the resumption of injection (which is around 1400 rpm);

And I also think that I have to play on the position of the idle stepper but here too I did not understand the function of all the maps of the idle stepper.

I built my own xdf based on that of woj with identification of many additionnal maps but some are still unknown to me.

Now clear understand what is happening on Ethanol .

It is possible turn off cut off mode. Try it and check. Set some low value below idle or 0.
Let me know write there.

Please put your xdf file there.

 

[GettinBetter]

@wojciechroj17
I believe that your name is in the 'author' section of the XDF, would you be kind enough to shed some light on the creation of such a doc? I need to create/get one for my 500 twinair. I am no stranger to binary/hex docs.

Regards
GB

 

[dmatthew]

I have the same problem as you. The only difference is that I work on a five hundred 900. I have gaps below 3000rpm.

Use map F6FF to tune your additional fuel need to turbo.

 

[zimone89]

hi all! I dumped a IAW G7.11 from a Fiat Uno Start 994 i.e, tried to reverse engineering but without success.

Can someone understand, more or less, if there are maps similar to those of other IAWs? It appears totally different from 16F and 4F despite being from the same family.

My project is to use it on a Turbo engine (Lancia Y10 Turbo, electronic injection, distributorless ignition), so i need to work on fueling and ignition advance.

Thanks!!!

 

[KalteMilch]

Having said all this, for those who got excited already, I need to destroy your day a bit. It took me close to 2 years of some of my spare time to analyse and experiment with the ECU to fully dissect the 8F/18F program. This is also the reason why I am not that eager to share too much of this, so that eBay will instantly become full of modified programs. But, for the brave ones that want to try things out I attached some images to this post, compliments of the Polish Centomania forum :worship:.

Hey Woj,
i will respect that. But can you public Spark Map from IAW 18FD 16V ECU? Than i can savely tune my engine with Speeduino.
Thanks!

Jannik

 

[Prawny12009]

Has anyone that is actively studying these ECU's figured out which part of the maps relate to the purge valve and how to delete/disable them to reduce the amount of autocorrect variables?

It was suggested before to raise the activation temperature to a very high value so that its map basically never gets applied.

But can the whole call be deleted so that the ECU thinks it was never fitted?

 

[COLDSTART]

woj are you still here

 

[newtonn51]

Hello everyone,
I am very happy to discover this subject which is a real gold mine for me

 

[shanere51]

Hi. This has been an extremely interesting read. I have been comparing several maps between cinq and seicento.
I have been using the XDF provided by woj. My question is why does the original ECU dump provided by woj read just fine using tuner RT. If I try read my own dump from a seicento it does not display the correct values in tuner RT. Am I missing something very obvious? I have tried several dumps from IAW ECUs.

 

[pasto]

Hi. This has been an extremely interesting read. I have been comparing several maps between cinq and seicento.
I have been using the XDF provided by woj. My question is why does the original ECU dump provided by woj read just fine using tuner RT. If I try read my own dump from a seicento it does not display the correct values in tuner RT. Am I missing something very obvious? I have tried several dumps from IAW ECUs.

it's normal; there are sometimes shifts in the maps depending on the ECU;

for example on cinquecento sporting, the fuel correction map located at address F175 will be located on a seicento sporting abarth at address F1B4; it will be located at F173 on another version.

 

[shanere51]

Thank you that makes sense and is what I suspected!

 

[Cri8]

Ciao, qualcuno ha XDF per IAW 8F? .....per favore WOJ....

Lo sto cercando anch'io, spero che qualcuno ce l'abbia, sto impazzendo!

 

[Cri8]

Ciao, sto cercando la stessa cosa, spero tu abbia trovato qualcosa, fammi sapere.

 

[Nik01]

Hi everyone,
I came across this post and I have to say it’s really useful. I’m just starting to experiment with ECUs and right now I’m working on an IAW 16F.E from a Panda 900 MPI (Single injector)


In this thread I found the XDF for the IAW16, but it looks like the addresses don’t quite match the SPI/MPI version. Do you have any info about that?
I tried with ECM Titanium: the only map that seems correct is the ignition one, while the others don’t look right.


Do you maybe have an XDF file?
@pasto I saw you were the last active user here… do you happen to have any idea?
Thanks so much

 

[pasto]

Hi everyone,
I came across this post and I have to say it’s really useful. I’m just starting to experiment with ECUs and right now I’m working on an IAW 16F.E from a Panda 900 MPI (Single injector)


In this thread I found the XDF for the IAW16, but it looks like the addresses don’t quite match the SPI/MPI version. Do you have any info about that?
I tried with ECM Titanium: the only map that seems correct is the ignition one, while the others don’t look right.


Do you maybe have an XDF file?
@pasto I saw you were the last active user here… do you happen to have any idea?
Thanks so much

Hi

SPI Single injector

All IAW16F have the same main maps;

Afterwards, depending on the years, additional maps were added to the overall management.

On the 0.9, it's the same ;

But there are addressing differences between ECUs. This means that a main injection map is at one address on a 0.9, and at another address on a 1.1 ciquecento and yet another address on a seicento 1.1 etc etc etc...

You must therefore find the maps which are at different addresses and modify your xdf.

Share your "bin" if you want some help.

 

[Nik01]

Hi

SPI Single injector

All IAW16F have the same main maps;

Afterwards, depending on the years, additional maps were added to the overall management.

On the 0.9, it's the same ;

But there are addressing differences between ECUs. This means that a main injection map is at one address on a 0.9, and at another address on a 1.1 ciquecento and yet another address on a seicento 1.1 etc etc etc...

You must therefore find the maps which are at different addresses and modify your xdf.

Share your "bin" if you want some help.

Damn, you’re right, my bad… I actually meant SPI like you said. I figured my IAW16 would have the maps at different addresses compared to the published XDF. The problem is I just can’t manage to find them. Anyway, I’m attaching the original bin below. Thanks a lot for your help!

 

[pasto]

Damn, you’re right, my bad… I actually meant SPI like you said. I figured my IAW16 would have the maps at different addresses compared to the published XDF. The problem is I just can’t manage to find them. Anyway, I’m attaching the original bin below. Thanks a lot for your help!

it is a particular image indeed;

there is quite a bit of byte shift, particularly because of additional maps.

For information, the main fuel correction card is located at F1B4
main ignition map F507

 

[Nik01]

it is a particular image indeed;

there is quite a bit of byte shift, particularly because of additional maps.

For information, the main fuel correction card is located at F1B4
main ignition map F507

Thanks a lot for the info!
So the fuel correction is at F1B4 and ignition at F507, that’s a great starting point.


Have you noticed if there are any other tables showing up? I’ve tried digging around, but it’s not very clear… I’d really like to populate your XDF properly so we can have all the parameters clearly readable instead of guessing.


Do you have any idea how to approach it? I tried with ECM, but the fuel table there doesn’t look complete — on the Y axis for RPM it goes up to 3200 and then turns negative, so I think the driver isn’t correct.
Do you maybe have a reference XDF or something else to build on?

Thanks so much

 

[pasto]

Thanks a lot for the info!
So the fuel correction is at F1B4 and ignition at F507, that’s a great starting point.


Have you noticed if there are any other tables showing up? I’ve tried digging around, but it’s not very clear… I’d really like to populate your XDF properly so we can have all the parameters clearly readable instead of guessing.


Do you have any idea how to approach it? I tried with ECM, but the fuel table there doesn’t look complete — on the Y axis for RPM it goes up to 3200 and then turns negative, so I think the driver isn’t correct.
Do you maybe have a reference XDF or something else to build on?

Thanks so much

which xdf are you working from.
you will understand that I spent hours and hours of testing and research to create around ten xdf according to the eproms that I was able to read in order to compare the different maps and that obviously I will not share all of that;
I am however here to help and guide your research so that you can have the necessary data to modify the essentials on your car.