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Title: Fuel Trim calculation - Post by: vavjettaw36 on October 05, 2016, 12:27:27 PM From this link: http://nefariousmotorsports.com/forum/index.php?topic=7596 (http://nefariousmotorsports.com/forum/index.php?topic=7596)
Does anyone know the appropriate line to put in the ECU file to enable rka_w/rka2_w? not sure what the memory address is and google brings up 3 results and they all point to the link above. Currently on audi s4 M box Title: Re: Fuel Trim calculation - Post by: nyet on October 05, 2016, 12:39:07 PM Those are both autodetected by ME7Info for Mbox.
Title: Re: Fuel Trim calculation - Post by: vavjettaw36 on October 05, 2016, 01:31:46 PM You are right. The real values to use, rkat2_w and rkat_w were already in my ECU file. Or at least they came closer to the LTFT Idle values of VCDS.
I used fra_w, fra2_w for idle and rkat_w and rkat2_w and these were the values I calculated: LTFT multi: (fra_w-1) * 100 LTFT2 multi: (fra2_w-1) * 100 LTFT idle: rkat_w LTFT2 idle: rkat2_w Result: .60 (vcds .60) .51 (vcds .40) 5.85 (vcds 5.5) 2.53 (vcds 2.3) Not perfect but close enough. Probably not a significant difference. |