[Help needed] Recognizing maps meaning in Ford Fiesta ST150 ECU

[FeeJay]

Hello guys!

I'm trying to reverse engineer firmware of 2007 Ford Fiesta ST150.
The engine is 2.0 Duratec NA.
The ECU is Visteon ESU-132 (Ford EEC-VI). It's working on MPC5xx with 32-bit float data.
I've made bdm full dump and started to work on this file with Ghidra. Structure of the file is fairly easy, there was full memory mapping described inside so that helped a lot.
I've found every single map inside the file together with corresponding axes as were described.

The problem is - I'm just learning to work with asm and I've got some experience in tuning diesels, not NA gasoline engines, so can't really recognize maps from looks or from asm functions.

Can you help me recognize maps I've put in this excel file? I wrote which one is Spark Advance and Injector Pulse Width, the rest is really hard for me.
Here is the link for the excel: Mapy st150.xlsx

It's also packed together with ECU file inside archive.

I would be really glad for every help!

[klocolus]

Hi there, what tools and programs did You use to dump and program st150 ECU? I have st150 in my family, I'd like to modify programs as well. Raise rev limiter because of mods, add some fuel and advance spark.

Still looking for help? In maps definitelly must be: Fuel (and spark?) correction table dependant on engine temperature, fuel (and spark?) correction to air temperature, idle RPM correction to temperature, fuel correction to system voltage (petrol injectors give different ammount of fuel when on ex. 12v, 13v, 14v etc), Fuel enrichement table on full throttle (open loop), Short and long term fuel correction based on lambda sensor (IDK is it in maps but I guess so), some EGR maps (if You have one), IMRC map (ST150 have IMRC valve however when I checked mine always in one position, not stuck, just commanded by ECU this way), maybe catalytic converter heat up map (fuel enrichment) depends on temperature and probably more