OLMA= Trims maxed positive
#1
TECH Enthusiast
Thread Starter
iTrader: (16)
Join Date: Jun 2004
Location: Farmingville, New York
Posts: 586
Likes: 0
Received 0 Likes
on
0 Posts
![](https://ls1tech.com/forums/images/ranks/ls1tech10year.png)
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
I'm currently running open loop with the MAF. My trims are maxed out positive. Is this right? The car runs fine with the exception of an idle problem that I'll deal with at a later date. The bests in my sig were actually achieved in this condition a few weeks ago in 80+ degree weather. I'm probably just being paranoid, but I figured I put it out there anyway.
#4
TECH Addict
iTrader: (10)
Join Date: Jun 2004
Location: Commerce Twp, MI
Posts: 2,918
Likes: 0
Received 0 Likes
on
0 Posts
![](https://ls1tech.com/forums/images/ranks/ls1tech10year.png)
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
Well if the trims were never reset after the last flash, then they could be active in open loop if they are positive. When running an open loop tune with (or without) the MAF, you should have turned off LTFT's and increased the Closed Loop Temp Enable to 283*F.
#5
TECH Fanatic
iTrader: (4)
Join Date: May 2002
Location: Fairview Heights Illinois
Posts: 1,851
Likes: 0
Received 0 Likes
on
0 Posts
![](https://ls1tech.com/forums/images/ranks/ls1tech10year.png)
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
Originally Posted by SSpdDmon
Well if the trims were never reset after the last flash, then they could be active in open loop if they are positive. When running an open loop tune with (or without) the MAF, you should have turned off LTFT's and increased the Closed Loop Temp Enable to 283*F.
Clear your fuel trims.
If you are really running in OL then you shouldn't get/show any fuel trims at all.
#6
TECH Enthusiast
Thread Starter
iTrader: (16)
Join Date: Jun 2004
Location: Farmingville, New York
Posts: 586
Likes: 0
Received 0 Likes
on
0 Posts
![](https://ls1tech.com/forums/images/ranks/ls1tech10year.png)
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
I'll check it out. Thanks guys! Just 1 more quick question. Under closed loop enable in HP Tuners I think it's ECT vs. IAT. Should I change all of the cells to 283*?
Last edited by fast01; 09-07-2006 at 12:46 PM.