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

    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!
    Attached Files Attached Files

 

 

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