H8 ECU's can now be reflashed

[foxdie]

Hi Kochajj,

I'm not sure if you've sorted this issue yet, are you changing the stock tables in Kens rom, or the extended maps? The stock tables aren't used anymore, you need to change the extended maps

 

[retssam]

Hi Steve. Did you save the ROM from 7201 to 7202?
I have a problem with reading ecuflash 7201FS.
I thinked I move ROM from 7201FS to 7202F.

 

[BCX]

7201 uses a differnet processor to a 7202/7203, while the roms are both 128kb in size, the processors use a different instruction set and arent compatible with each other.

You'll need MMCFlash to reflash the 7201.

Dont try and reflash a 7201 rom onto a 7202/7203 ECU, that will brick it.

 

[TME_Steve]

Yeah what he said

 

[retssam]

That's the bad news. I bought a second ECU 7202 for swap. Everything that was good only AT gearbox is not working properly. I do not know why.

I decided to buy mmc but I can not find the definition of 7201 ...

The worst part is that I have a 2.5V6 N / A + Single Turbo and I can not tune ....

edit:
On cvr4.com definitions I found matching the 7202 but unfortunately do not fit into 7201.
Just as you wrote are the other 7201 vs 7202. Definition is the ability to adapt from 7202 to 7201?

 

[retssam]

Here is the ROM 7201 6A13 NA, AT 1997

http://speedy.sh/Sbu7U/7201-NA.bin

I do not work for me ozvr4 upload.

 

[TME_Steve]

We have definitions for 7201 ecus but they're based on a Matchup of information from the 7202. I don't think 7201 can be disassembled in ida software. Bcx correct me if I'm wrong please.

 

[retssam]

I found on cvr4 definitions for the 7201 VR4 but does not display properly value me load and RPM. I tried to replace the addresses of 7202 but without success.

Where can I find the correct addresses for these values?

 

[TME_Steve]

Looks like you have a part of a fuel table there. What tables are you wanting to find? Fuel and ignition should be easy enough, more than that I'd say you're on your own.

 

[BCX]

I don't think 7201 can be disassembled in ida software. Bcx correct me if I'm wrong please.

Last time i checked, IDA didnt support that processor... havent check newer versions of IDA... but it's easier for most to just replace their ECU with a 7202/7203 and use ECUFlash.

I tried to replace the addresses of 7202 but without success.

This wont work at all due to the fact the rom are laid out completely different. I'll open your rom later on tonight with my
definitions and upload them here if OK.

 

[retssam]

Looks like you have a part of a fuel table there. What tables are you wanting to find? Fuel and ignition should be easy enough, more than that I'd say you're on your own.

for a start :Fuel Map, Ignition Map, Injector size scaling .

Last time i checked, IDA didnt support that processor... havent check newer versions of IDA... but it's easier for most to just replace their ECU with a 7202/7203 and use ECUFlash.

And so too did, I bought a 7202 ECU, turned off immo, I set the injectors and started to tune, but unfortunately when you drive slowly gearbox (automatic) is not shifting.
So I decided to try for 7201 but I can not tune it to see if it is ok.

 

[retssam]

hey. I bought another ECU (7202, MD340291, 2.5 V6 SOHC), you could check if you have the definitions him?

 

[TME_Steve]

I don't, sorry

 

[Hurubaw]

Hey, I have a 7201 ECU on my PFL Auto Galant. Can I just replace it with a FL 7202 or 7203 ECU, and get that extra 20hp FL oomph while the A/T works properly? Also considering doing some mods in the future, so newer ECU should be easier to deal with dyno-tuning etc?

 

[retssam]

me after swapping ECU 7201 -> 7202 everything is working properly,

 

[retssam]

hey, finally I managed to replace the ECU 7201F-> 7202 and everything works at correct me. I currently have a boost 0.4bar but I would Increase the boost and even better tune the car but will restrict me on the map
http://www.fotosik.pl/pokaz_obrazek/pelny/0580e47299254f3d.html
At the top 6a13TT. Below 6a13 NA
or you can increase the range of LOAD in the current map?