Notices
ECU Flash

Can Fuel Trims be Perfect?

Thread Tools
 
Search this Thread
 
Old Jul 10, 2008 | 01:18 AM
  #31  
Inprogress's Avatar
Thread Starter
Evolved Member
iTrader: (30)
 
Joined: Jun 2004
Posts: 1,947
Likes: 0
From: Houston, TX
Bryan,

yeah the o2 feedback is changing.
Reply
Old Jul 10, 2008 | 01:50 PM
  #32  
Inprogress's Avatar
Thread Starter
Evolved Member
iTrader: (30)
 
Joined: Jun 2004
Posts: 1,947
Likes: 0
From: Houston, TX
FINALLY MY FUEL TRIMS CHANGED!!!!!!

In evoscan v2.4 I'm getting -1.8 (stayed there for 3minutes) and then after a while it went to -3.4 and stayed there for over 4 minutes at which point i concluded the log.

I logged at idle for just over 15 minutes. Are these trims for LTFT-lo ok?
Reply
Old Aug 21, 2008 | 03:48 PM
  #33  
FlintownKilla's Avatar
Newbie
iTrader: (2)
 
Joined: Sep 2007
Posts: 70
Likes: 0
From: North Ogden
Originally Posted by Inprogress
FINALLY MY FUEL TRIMS CHANGED!!!!!!

In evoscan v2.4 I'm getting -1.8 (stayed there for 3minutes) and then after a while it went to -3.4 and stayed there for over 4 minutes at which point i concluded the log.

I logged at idle for just over 15 minutes. Are these trims for LTFT-lo ok?
I have the same issues as you, what did you change to see the fuel trims change?
Reply
Old Aug 21, 2008 | 04:14 PM
  #34  
Jack_of_Trades's Avatar
Evolved Member
iTrader: (17)
 
Joined: Jun 2007
Posts: 3,523
Likes: 2
From: Opelika,AL
Anything between +/-5% is fine. Getting it better than that is basically a waste of effort. The ECU was designed to have variances far greater than this so you still have plenty of headroom.
Reply
Old Aug 21, 2008 | 11:23 PM
  #35  
Inprogress's Avatar
Thread Starter
Evolved Member
iTrader: (30)
 
Joined: Jun 2004
Posts: 1,947
Likes: 0
From: Houston, TX
Just reset my battery and logged.

Originally Posted by FlintownKilla
I have the same issues as you, what did you change to see the fuel trims change?
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Fast_Freddie
ECU Flash
309
Oct 30, 2023 01:56 AM
alicea8541
ECU Flash
13
Jun 9, 2009 07:47 PM
RedLanEVO
ECU Flash
20
May 24, 2008 12:17 PM
eTiLiKo
ECU Flash
3
Jan 22, 2008 02:38 PM
Oracle1
ECU Flash
9
Jun 12, 2007 11:45 AM




All times are GMT -7. The time now is 12:45 PM.