Dev Blog
Forum
Wiki
About
NefMoto
>
Technical
>
Tuning
>
E85 Audi A3 1.8t conversion
Pages: [
1
]
« previous
next »
Author
Topic: E85 Audi A3 1.8t conversion (Read 578 times)
Dave567
Newbie
Karma: +0/-0
Offline
Posts: 5
E85 Audi A3 1.8t conversion
« on: August 22, 2024, 10:19:08 AM »
Good evening,
I'm having a problem converting an Audi A3 1.8t to E85.
In fact, I modified the KFLF card and the FKKVS card, replacing the 1 with 0.85, but the car chatters at idle and backfires even though the mixture should be rich enough not to have a problem.
Do you have any idea to resolve the problem ?
Thank you in advance for your help
Logged
dal
Full Member
Karma: +6/-7
Offline
Posts: 210
Re: E85 Audi A3 1.8t conversion
« Reply #1 on: August 22, 2024, 11:06:27 AM »
Revert this and read this page:
https://s4wiki.com/wiki/Tuning
You are completely lost, and risking your engine.
Logged
Dave567
Newbie
Karma: +0/-0
Offline
Posts: 5
Re: E85 Audi A3 1.8t conversion
« Reply #2 on: August 22, 2024, 01:38:57 PM »
Good evening,
I don't understand why it has a risk for the engine since according to the s4 wiki, the KFLF map serves as a base injection map and the FKKVS map serves as an enrichment map for zones from 0 to 30%.
Furthermore, according to certain forum messages it seems to indicate that these two maps should be modified, perhaps I should also have modified the KRKTE map ?
Logged
aef
Hero Member
Karma: +69/-46
Offline
Posts: 1600
Re: E85 Audi A3 1.8t conversion
« Reply #3 on: August 23, 2024, 12:01:37 AM »
revert your changes back to stock and just change your krkte by 30% because you need roughly 30% more e85 than on pump fuel.
Logged
Dave567
Newbie
Karma: +0/-0
Offline
Posts: 5
Re: E85 Audi A3 1.8t conversion
« Reply #4 on: August 23, 2024, 08:37:42 AM »
Hi aef,
Thank you for your answer, I modified the KRKTE map going from 0.10311 m/s to 0.17000 m/s and the car works correctly, the lambda value is slightly too rich 0.986 instead of 1 but that does not seem pose a problem.
I still need to modify the KFZW/KFZW2 and KFZWOP/KFZWOP2 maps in order to add 4° of ignition advance.
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 22, 2024, 05:25:43 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...
