long term fuel trims in open loop ??? - Page 3

WolfPlayer · 08-11-2006, 08:26 AM

JDM-STI,

Please list your 'Closed Loop Modified Load' settings. Also, please tell me how you know that it is only 3.0v + that is open loop? How do you know the switchover happens at 3.0v?

t

04stiguy · 08-11-2006, 03:48 PM

Manipulating your closed loop tables will force open loop.

***JDM-STI*** · 08-11-2006, 06:25 PM

Quote:

Originally Posted by WolfPlayer

JDM-STI,

Please list your 'Closed Loop Modified Load' settings. Also, please tell me how you know that it is only 3.0v + that is open loop? How do you know the switchover happens at 3.0v?

t

I dont have those settings. Scott has all of that info. 3.0V is where the fuel trims finally zero out. Plus that is where Scott told me that it is going into OL.

**Siegel Racing** · 08-11-2006, 06:32 PM

This is true, we've been fighting this issue forever. I have 2 cars with it, one with AP and one with Ecutek. You can see when it goes OL when the short-term goes to 0 (.39 in ap). I did manage to make another '05 do it at 3.0, and then change it to 2.45. I'm going to work on JDM-STi's more tomorrow...

If your open loop delays are 0, it should changeover fairly consistently at a certain voltage. If you have the delays non-zero, it will be harder to nail down a voltage. It is easiest to see on a highway in 5th or 6th. You can ease onto the gas while watching short-term trim and maf voltage. You will likely see that it goes OL at a consistent voltage...

SS

WolfPlayer · 08-11-2006, 09:33 PM

Quote:

Originally Posted by Subaru of Gwinnett

You will likely see that it goes OL at a consistent voltage...

SS

Scott,

What happens when you lower the Closed Loop Modified Load values?

t

***JDM-STI*** · 08-16-2006, 01:30 PM

Quote:

Originally Posted by WolfPlayer

Scott,

What happens when you lower the Closed Loop Modified Load values?

t

Not sure how much he really gets to read the boards these days. He's bee extremely busy tuning. If you are intested in some of my settings, PM him. I know he checks that and his email regularly. He and I were just speaking VERY highly of you yesterday on the phone.

08-11-2006, 08:26 AM	#31
WolfPlayer Moderator & ECU Tech Car: 05 CGM STI Fav Mod: mo boostaz Location: Fredneck, MD Posts: 3,622 Join Date: Jun 2004 Trader Rating: (6)	JDM-STI, Please list your 'Closed Loop Modified Load' settings. Also, please tell me how you know that it is only 3.0v + that is open loop? How do you know the switchover happens at 3.0v? t This ad is not endorsed by this member. Please register or login to hide this ad.

08-11-2006, 03:48 PM	#32
04stiguy Senior STI Driver Car: '05 STi Fav Mod: Cusco Zero 2R's Posts: 336 Join Date: Jun 2004 Trader Rating: (0)	Manipulating your closed loop tables will force open loop.

08-11-2006, 06:32 PM	#34
Siegel Racing Authorized Vendor Car: Your STi ;) Fav Mod: Everything Location: Atlanta Posts: 1,239 Join Date: Mar 2005 Trader Rating: (2)	This is true, we've been fighting this issue forever. I have 2 cars with it, one with AP and one with Ecutek. You can see when it goes OL when the short-term goes to 0 (.39 in ap). I did manage to make another '05 do it at 3.0, and then change it to 2.45. I'm going to work on JDM-STi's more tomorrow... If your open loop delays are 0, it should changeover fairly consistently at a certain voltage. If you have the delays non-zero, it will be harder to nail down a voltage. It is easiest to see on a highway in 5th or 6th. You can ease onto the gas while watching short-term trim and maf voltage. You will likely see that it goes OL at a consistent voltage... SS