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Old 01-29-2020, 11:38 AM   #1
paytonzellers
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Default AF Learning and Bad Gas Mileage

Stupid question, I have a 2013 Wrx, only mods are Cobb SF Intake, N1 catback, and Accessport V3. Currently running OTS Stage 1+SF 91 OCT, and use 93 gas from exxon. My AF Learning numbers are (-3.91,4.18) and AF correction 1 is (-21,14) normally. I am only getting around 14-16 mpg and drive pretty conservative. I let it warm up about 5 minutes, and my commute is about 15 minutes to work. Would this be caused by a boost leak? Or possibly a bad front O2 sensor? Any help would be appreciated. If needed I have data logs of 2 3rd gear pulls.
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Old 02-03-2020, 10:25 PM   #2
BurninSTI
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I'm dealing with AF issues now... how many miles on the car?
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Old 02-03-2020, 11:59 PM   #3
paytonzellers
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Quote:
Originally Posted by BurninSTI View Post
I'm dealing with AF issues now... how many miles on the car?


88k as of tomorrow most likely
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Old 02-04-2020, 09:05 AM   #4
BurninSTI
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Post or send me the logs, Ill take a look.
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Old 02-04-2020, 10:45 PM   #5
Scorpius
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Check your turbo inlet for tears.
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Old 02-04-2020, 11:12 PM   #6
Jersey Man10
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Custom tune would help since ots tunes are meh. MAF sensor might need replacing. In all honesty its probably the intake causing problems. Try switching back to stock and see what results you get.
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Old 02-05-2020, 06:30 PM   #7
Scorpius
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I'm guessing since it's running so rich it's getting unmetered air after the maf somewhere.
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Old 02-06-2020, 02:27 PM   #8
BurninSTI
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Is it dripping gas while idling?
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