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Old 05-18-19, 07:17 PM   #1
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Default High AF Learning 1

Hello,

What would cause for AF Learning 1 to reach -13 when letting go of the gas pedal after accelerating while still being in gear. In every other situation the car performs as intended. Any help would be greatly appreciated.


Thanks
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Old 05-18-19, 07:56 PM   #2
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One of your learning ranges has learned a -13 percent correction. Probably the B range.. Set your monitors to AF Learning A, B, C and D to see what one it is.
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Old 05-18-19, 08:18 PM   #3
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Default Re: High AF Learning 1

AF Learning 1 gives you the current trim, keep monitoring that. I focus on steady state throttle/load when referencing trims. If you want to post a log, I can take a look.
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Old 05-19-19, 04:00 PM   #4
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Default Re: High AF Learning 1

Dirty MAF is the most common issue. Get yourself a can of MAF sensor cleaner. Remove your MAF, DO NOT TOUCH THE WIRES INSIDE, keep your hands on the head, spray all the wires inside a few times, then re-install.
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Old 05-20-19, 08:49 AM   #5
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Default Re: High AF Learning 1

What mods do you have and what map are you running?

Quote:
Originally Posted by zero316189 View Post
Hello,

What would cause for AF Learning 1 to reach -13 when letting go of the gas pedal after accelerating while still being in gear. In every other situation the car performs as intended. Any help would be greatly appreciated.


Thanks
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