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Old 09-19-2020, 12:26 PM   #1
fischouttawater
Scooby Newbie
 
Member#: 420999
Join Date: May 2015
Location: Seattle Area
Vehicle:
2013 STI Hatch
World Rally Blue

Exclamation 2013 STI - High AF Learning 1 Values

Hey everyone,

I installed an IAG Street AOS on my 2013 STI a couple of weeks back and have been seeing high AF Learning 1 values since. I know I know, I probably didn't secure a vacuum hose, right? I smoked my intake tract using a halloween smog machine and probably took my intercooler and throttle body on and off 30 times until I saw no more smoking.

Currently, here are the mods on the car:
Grimmspeed Intake
Grimmspeed Catback
Aluminati TGV Deletes
IAG Street AOS
Perrin Turbo Inlet
Custom ETune

I had the TGVs deleted because the seals were leaking and causing a vacuum leak when I was going through the initial etuning process this spring.

So now, I am going through the process of getting the car ready for a dyno tune.

I will be adding the following:
IATuning Fuel Pressure Regulator
Grimmspeed Catted Downpipe
Grimmspeed EBCS
AEM Wideband O2
AEM Boost gauge

Luckily, my tuner will do the pre-dyno inspection, but seeing as that is a month away, I am tirelessly trying to get this resolved.

Now back to the issue. I honestly started with zip ties, moved to work gear clamps, and ended up going back to double zipties on some connections since it didn't crush the hose and felt more stable than the clamps.

I am seeing my AD Learning 1 value sit at +10.94 pretty consistently.

AF Learning 1 A: -2.1
AF Learning 1 B: 1.3
AF Learning 1 C: 11
AF Learning 1 D: 0

From what I understand about all of this, this lines up with my overall AF Learning 1 reading. I am only seeing the spikes at cruising speeds but have a fine idle. This makes sense by only AF Learning 1 C ebing high, right ?

Here is a recent datalog. I really appreciate any help here!

https://datazap.me/u/subiblu/log-160...0&data=3-4-5-6
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Last edited by fischouttawater; 09-19-2020 at 05:12 PM.
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