Dev Blog
Forum
Wiki
About
NefMoto
>
Technical
>
Data Logging
>
Fuel Trim calculation -
Pages: [
1
]
« previous
next »
Author
Topic: Fuel Trim calculation - (Read 4637 times)
vavjettaw36
Newbie
Karma: +0/-0
Offline
Posts: 10
Fuel Trim calculation -
« on: October 05, 2016, 12:27:27 PM »
From this link:
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
Logged
nyet
Administrator
Hero Member
Karma: +607/-168
Offline
Posts: 12268
Re: Fuel Trim calculation -
« Reply #1 on: October 05, 2016, 12:39:07 PM »
Those are both autodetected by ME7Info for Mbox.
Logged
ME7.1 tuning guide
ECUx Plot
ME7Sum checksum
Trim heatmap tool
Please do not ask me for tunes. I'm here to help people make their own.
Do not PM me technical questions! Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your ex
vavjettaw36
Newbie
Karma: +0/-0
Offline
Posts: 10
Re: Fuel Trim calculation -
« Reply #2 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.
Logged
Pages: [
1
]
Print
« previous
next »
Jump to:
Please select a destination:
-----------------------------
General
-----------------------------
=> Introductions
=> General Discussion
-----------------------------
Noob Zone
-----------------------------
=> Noob Questions
=> Noob Guides and FAQs
-----------------------------
Technical
-----------------------------
=> NefMoto Software
=> Tuning
===> Documents & Helpers & How To's
===> Community Projects
=> Diagnostics
=> Flashing and Chipping
=> Cluster and Immobilizer
===> ECU EEPROM images
===> Original Cluster dumps
===> Original Cluster dump requests
=> Data Logging
=> Reverse Engineering
=> Communication Protocols
-----------------------------
ECU Files
-----------------------------
=> ECU Definition Files
===> ECU Definition File Requests
=> Original ECU Files
===> Original ECU File Requests
=> Checksum Update Requests
-----------------------------
Vehicles
-----------------------------
=> Vehicle Tech
=> Project Cars
-----------------------------
Regional
-----------------------------
=> Canadian Regional Discussion
=> US Regional Discussion
-----------------------------
Classifieds
-----------------------------
=> For Sale
=> Wanted
=> Services
-----------------------------
Miscellaneous
-----------------------------
=> Off Topic
=> Forum Tech Support
=> Bizarro Messages Posted by Bots and Spammers
Navigation
Home
Help
Login
Register
Personal Tools
November 23, 2024, 12:06:07 AM
Welcome,
Guest
. Please
login
or
register
.
Did you miss your
activation email?
1 Hour
1 Day
1 Week
1 Month
Forever
Login with username, password and session length
Search
Advanced Search
Loading...
