Welcome to the North American Subaru Impreza Owners Club Friday December 19, 2014
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Here you can view your subscribed threads, work with private messages and edit your profile and preferences Home Registration is free! Visit the NASIOC Store NASIOC Rules Search Find other members Frequently Asked Questions Calendar Archive NASIOC Upgrade Garage Logout
Go Back   NASIOC > NASIOC Technical > Engine Management & Tuning

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.
* Registered users of the site do not see these ads.
Reply
 
Thread Tools Display Modes
Old 08-07-2014, 07:28 PM   #1
BB2006LGT
Scooby Newbie
 
Member#: 367150
Join Date: Sep 2013
Default AF learning with no load idling vs idling with load

Maybe its normal, but I want to see if anyone else has seen this. I have a built motor, 740 injectors, SF intake, 18g turbo, up/down pipe and all the goodies that support the stuff. When sitting there idling with no lights, no AC or anything my AF learning is around 0 to .78. When I turn my lights on my AF learning goes up to 4.69, and when I turn my AC on, my AF learning moves to 8.59.

Does anyone else have this big of a AF learning curve in there idle with different accessories on/off? My B,C,D values are all between .78-1.56 and dont change with accessories.
* Registered users of the site do not see these ads.
BB2006LGT is offline   Reply With Quote
Old 08-08-2014, 10:30 AM   #2
veritasaequitas
Scooby Newbie
 
Member#: 333964
Join Date: Oct 2012
Location: LI NY
Vehicle:
2005 sti
aspen white

Default

From what you're saying you are putting a load on your car from the electric draw of the headlights and the a.c. you need to look at af learning and the other af. For some reason it slipped my head I think it's costant? If they are more than 5 combined some tuning needs to be done.

Sent from my SCH-I545 using NASIOC mobile app
veritasaequitas is offline   Reply With Quote
Old 08-08-2014, 10:42 AM   #3
JonnyV2889
Scooby Specialist
 
Member#: 197384
Join Date: Dec 2008
Chapter/Region: NESIC
Location: MWV NH
Vehicle:
2006 WRX Ltd
OBP

Default

Might want to look into your maf scaling
JonnyV2889 is offline   Reply With Quote
Old 08-08-2014, 02:24 PM   #4
BB2006LGT
Scooby Newbie
 
Member#: 367150
Join Date: Sep 2013
Default

I was reading about fuel pressure regulator tripping out causing inconstant pressures. I sat there this morning for 15 minutes playing with the FPR taking on off the vac line and varying pump dutys. Didn't do anything my pressure was consistent so I think it's safe to rule that out. Other thing I found Cobb talking about is load compensation tables. I'll look into that.
BB2006LGT is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -4. The time now is 12:10 PM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2014 Axivo Inc.
Copyright ©1999 - 2014, North American Subaru Impreza Owners Club, Inc.