Evoscan won't log past a certain load
#1
Newbie
Thread Starter
Evoscan won't log past a certain load
Hey guys,
Have recently done a 50/50 mix of E85 and pump gas in my car. I've upped the boost and for some reason it won't log anything more than 379.8 load in Evoscan
I've changed the 2byte to 1byte load factor in both evoscan and ecuflash to 1.7. That means I should be able to log 255 * 1.7 = 433 load
The rom is tephramod v7 for Evo 7 (90550701). Running a gt3582 turbo at 30psi
Thanks!
Have recently done a 50/50 mix of E85 and pump gas in my car. I've upped the boost and for some reason it won't log anything more than 379.8 load in Evoscan
I've changed the 2byte to 1byte load factor in both evoscan and ecuflash to 1.7. That means I should be able to log 255 * 1.7 = 433 load
The rom is tephramod v7 for Evo 7 (90550701). Running a gt3582 turbo at 30psi
Thanks!
#3
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Join Date: Apr 2012
Location: Chelyabinsk, Russia
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Problem is quite simple. And it's not only logging related. There is a limit imposed on "MasterLoad" variable based on current engine rpm. Solution would be to patch that part of code.
Technical details: in that generation of Mitsushi controllers limit was calculated from 2d map of u8 values *8. Max limit would be 255*8 = 2040.
Master load to load_main is converted using formula load_main = MasterLoad * MAF_Size / 65536, where MAF_Size for evo is around 39044. load(%) = load_main * 10 / 32. 2040 * (39044 / 65536) * (10 / 32) ~= 379.8.
I'm quite surprised that you were not stopped earlier at 320% by overload protection fuel cut.
Technical details: in that generation of Mitsushi controllers limit was calculated from 2d map of u8 values *8. Max limit would be 255*8 = 2040.
Master load to load_main is converted using formula load_main = MasterLoad * MAF_Size / 65536, where MAF_Size for evo is around 39044. load(%) = load_main * 10 / 32. 2040 * (39044 / 65536) * (10 / 32) ~= 379.8.
I'm quite surprised that you were not stopped earlier at 320% by overload protection fuel cut.
#4
Newbie
Thread Starter
Thanks for your reply
Boost limit/cut is increased to around 640% in Tephra ROM I believe
Also, this thread solved my issue:
https://www.evolutionm.net/forums/ecu...ml#post9302086
Boost limit/cut is increased to around 640% in Tephra ROM I believe
Also, this thread solved my issue:
https://www.evolutionm.net/forums/ecu...ml#post9302086
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