High AF Correction?

maverpl · 01-12-2021, 11:16 PM

Hey guys, quick question. Is AF correction 1 -20 to +35 normal? AF Learnin 1 -15% to +18. I have seen it pooped out couple times on my AP when driving to work, occasional -1.41,-2.81 knock. I feel like the car jerks a little when driving in traffic, AFR looks fine, no DAM drops. I have been dyno tuned since couple weeks.

GS EBCS, CHARGEPIPE, TMIC, INTAKE, JPIPE
Perrin turbo inlet, IAG TGV deletes, P&L EGR delete.

93octane.

Are those AF correction and learing numbers fine? Should i be concerned about this?

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dpetro1 · 01-13-2021, 12:34 AM

Are you quoting min/max values or are you getting those values while cruising? Under load?
Take a datalog to post up so we can take a look at what is going on.

maverpl · 01-13-2021, 01:34 AM

Quote:

Originally Posted by dpetro1

Are you quoting min/max values or are you getting those values while cruising? Under load?
Take a datalog to post up so we can take a look at what is going on.

Theses are the min and max values i saw when cruising not sure when they happend. Will get a log tomorrow.

dpetro1 · 01-13-2021, 01:39 AM

Quote:

Originally Posted by maverpl

Theses are the min and max values i saw when cruising not sure when they happend. Will get a log tomorrow.

Ok. My understanding is that Min/max is mostly irrelavant. When you are on decel or just barely tipping into the throttle some funky values can register. AF correction should be +/-5 while cruising and under light load.

maverpl · 01-13-2021, 10:04 AM

Quote:

Originally Posted by dpetro1

Ok. My understanding is that Min/max is mostly irrelavant. When you are on decel or just barely tipping into the throttle some funky values can register. AF correction should be +/-5 while cruising and under light load.

I have recorded 3 logs, im gonna post them later after work. I noticed that one spike up to 30 was when the car was idling at gas station, oil temp was around 140 so it was still warming up.

scotte30m3 · 01-13-2021, 04:21 PM

https://phatbottituning.com/buy-an-e...roubleshooting

read this... it will answer your questions and give you direction.

#phatbotti

maverpl · 01-13-2021, 05:40 PM

Quote:

Originally Posted by scotte30m3

https://phatbottituning.com/buy-an-e...roubleshooting

read this... it will answer your questions and give you direction.

#phatbotti

Thanks, i guess nothing is wrong with my car and im overreacting. Car runs completely fine, was just worried about those high af correction numbers being high but i see now that it’s normal i certain situations.

WMTwrx15 · 01-13-2021, 06:15 PM

I agree with it being normal, after warm up reset the min max on ap and see what it does

Just for your piece of mind

Good ol’ anxietyport

maverpl · 01-15-2021, 09:45 PM

Here are the logs if someone with more knowledge would take a look at them i would be grateful.

https://datazap.me/u/maverpl/af?log=2&data=
https://datazap.me/u/maverpl/af?log=1&data=
https://datazap.me/u/maverpl/af?log=0&data=

First log is after i cleaned the map sensor.

thanks

01-12-2021, 11:16 PM	#1
maverpl Scooby Newbie Member#: 519850 Join Date: Oct 2020 Location: ILLINOIS Vehicle: 2019 Wrx CWP	High AF Correction? Hey guys, quick question. Is AF correction 1 -20 to +35 normal? AF Learnin 1 -15% to +18. I have seen it pooped out couple times on my AP when driving to work, occasional -1.41,-2.81 knock. I feel like the car jerks a little when driving in traffic, AFR looks fine, no DAM drops. I have been dyno tuned since couple weeks. GS EBCS, CHARGEPIPE, TMIC, INTAKE, JPIPE Perrin turbo inlet, IAG TGV deletes, P&L EGR delete. 93octane. Are those AF correction and learing numbers fine? Should i be concerned about this? * Registered users of the site do not see these ads.

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01-13-2021, 12:34 AM	#2
dpetro1 Scooby Newbie Member#: 487500 Join Date: Jun 2018 Location: Catonsville, MD Vehicle: 2018 WRX	Are you quoting min/max values or are you getting those values while cruising? Under load? Take a datalog to post up so we can take a look at what is going on.

01-13-2021, 04:21 PM	#6
scotte30m3 Scooby Newbie Member#: 409636 Join Date: Dec 2014 Vehicle: 2015 WRX	https://phatbottituning.com/buy-an-e...roubleshooting read this... it will answer your questions and give you direction. #phatbotti

01-13-2021, 06:15 PM	#8
WMTwrx15 Scooby Newbie Member#: 501927 Join Date: May 2019	I agree with it being normal, after warm up reset the min max on ap and see what it does Just for your piece of mind Good ol’ anxietyport

01-15-2021, 09:45 PM	#9
maverpl Scooby Newbie Member#: 519850 Join Date: Oct 2020 Location: ILLINOIS Vehicle: 2019 Wrx CWP	Here are the logs if someone with more knowledge would take a look at them i would be grateful. https://datazap.me/u/maverpl/af?log=2&data= https://datazap.me/u/maverpl/af?log=1&data= https://datazap.me/u/maverpl/af?log=0&data= First log is after i cleaned the map sensor. thanks