Need Your Help to disassemble Lada Niva GM PROM

[djtof]

Hello,

I'm a french guy.

I need your help to disassemble and how to know my GM ECU.

I have a Lada Niva 4X4 TBI, and the ECU is GM:
GM EFI-4

16186499

2124-1411010


http://avto-remont.com/download/ser/j4gm/bdjn6497.rar

I have a xdf File for Tunerpro, but I have only the Spark advance 3D table and the Injection 3D Table too.
I need to modify AFR, Spark vs Coolent T°, etc...

My project are very nice, I need to drive with this niva with max power from the motor.
And I need to drive with Bio Ethanol, but it's very different like the GAS, so I need to change some parameters.

So please help me to disassemble my Prom, and to know where is all datas I need.

Thanks in advance.
chris

Please find this following link, it's my project on French Forum special Lada Niva.

http://nivaventure.forumactif.com/mecan ... -t6784.htm

I find some informations, but not the essential.
Please Help me.
thanks

[VL400]

Hi Chris,
Sounds like an interseting project! Here is the translated webpage. There are a few Niva's over in Oz here but they are pretty rare, they go well in the sand.


Just had a quick look at the bin and will post a disassembled file later today. Then its a matter going through and finding the tables you want. But you have already got the ALDL stream so if you can post that up will make the job of finding tables much easier

[VL400]

Here is a disassembled asm of the bin you posted.

[djtof]

Hello

Thanks a lot for your help.

How it's possible to find maps, constants and Flags?
You talk about ALDL Stream, what do you want, because I have a XML File for EFILIVE, and not much more.


I have this, but I don't if all are good.
Ign map? 11x16 at 00B5
Ign 2D map? 1x17 at 01D5
----
Fuel map? 16x9 at 0485
fuel map? 9x5 at 0518
fuel map 2D 1x16 at 0546


Thanks a lot for your help, because nobody in France, modify the GM ECU, and It's not easy for a newbee.

[delcowizzid]

yes post the XML for EFILIVE then we can crossreference the xml to the dissasembly and find names for the locations.
00B5 is the main spark advance table.
0485 is the main volumetric efficeincy table or the % of cylinder fill of air used for fuel equations.
01D5 looks a lot like idle spark advance but not sure on that one.
0518 my guess coolant correction spark.

[djtof]

Thanks a lot for your help.

So please find the XML file.

Thanks
Chris

[delcowizzid]

i serched for info on this ECU and BIN today all i found was you asking for help least youve come to the right place

[djtof]

Yes many thanks.

If you want I have some Software for GM ECU.

Bye

[delcowizzid]

anyone have thoughts on the following maybe it would be best to do a code swap for this ecu instead of defining it just a thought anyway.

Well it seems this ecu is pinned nearly exactly like our 808 aussie/nZ ecu apart from there being only one injector due to it being TBI injected im wondering if a TBI camira tune would be better or a $5D vn version being that they are more well defined .the other things i spotted at a glance were manifold air heater on the LADA is on the fan circuit pin and a few earths are missing im guessing with 1 or 2 wires rmoved and 1 or 2 earths added it could run fine on the camira code. knock sensor is a little different to and it runs DIS ignition packs so need to sort the reference angle.the $5D would loose 8192 baud aldl but im wondering if the modded $12 might work if it can switch to 4 cylinder i know VL400 has done some mods before for 4 cylinder $12.

that is all memory empty again ready for more action / AS YOU WERE