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Old 01-31-2013, 09:31 AM   #3
Cobb Tuning
Member#: 4803
Join Date: Mar 2001
Location: Austin, TX

Originally Posted by JOHN2011WRX View Post
I got a 2011 wrx with catback and turbosmart hybrid bov set to vent to atmosphere. i just flashed cobb stage 1 and everything looked good. After a couple days my A/F learning 1 started fluctuating between values when car is idling or in gear but no throttle is being applied. It has been gradually increasing over the past days, its gotten as high as 3.91 and as low as -.8. Can you guys take look, n tell what might be going on.

Hear are my 3rd gear pulls from when i first flashed and then the other ones.
You'll need to set the permissions to public in order for anyone to view the logs.

A/F Learning 1 can move around quite a bit. There are actual 4 values that make up this monitor, with 1 of the 4 being applied at any given time (based on airflow). As long as you are within around +/- 5%, you are fine. If you are well outside of that at any time (say +/- 8% or worse), then there's most likely some kind of fueling related issue.

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