Cobb Accessport A/F learning vs. correction IW STi Forum . Learning A trend was noted and the ECU automatically applies correction. Both are added together to find final values. There will ALWAYS be some sort of correction. I generally aim for +/- 3%, but +/-5% is perfectly acceptable. Additionally, make not of when corrections change. Temperature an fuel (ethanol content) will change these values.
Cobb Accessport A/F learning vs. correction IW STi Forum from www.researchgate.net
on my AP i ranged between -3 to 3 for AF Learning. THen i took my intercooler off to install a heatshield. AF learning went all over the place, mostly +11 or so, going up to 15..
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AF correction is commonly know as Short Term Fuel Trim (STFT) AF Learning is commonly know as Long Term Fuel Trim (LTFT) The ECU uses the MAF voltage and the MAF calibration.
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High Af learning and correction. I’ve got a 2018 WRX and I recently installed a Cobb AOS and Cobb SF intake, car sounds and runs perfect, at least as far as I can tell, nothing seems.
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Af learning a,b,c,d. Jump to Latest Follow 1 10 of 10 Posts. C. Cujoman10 Registered. Joined Dec 16, 2016 22 Posts . Discussion Starter.
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Under load they fall in the acceptable range, but at idle af learning usually sits around 12-18, and af correction will just as high or low as +\- 25 when letting off the gas or.
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In the before picture, the AF Learning had a minimum of -45.31% and max of 4.69%. After cleaning you are getting values from -15.62 to 8.59. But there is no information.
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At one point, my car's air fuel trims were all over the place (+25-30% sustained values) and the car was running rough. I checked every single connection for...
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A/F correction #1 is used only in closed loop and shows you the amount of fuel immediately added or substracted as measured by the front O2 sensor to achieve the AFR.
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So, my AF correction will jump around by exactly 10.16. It happens when I’m on level pavement, lower RPMS (2200-3000), and have constant throttle at 5-10%. When this.
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I believe AF correction is the immediate, short-term trim adjustments, and learning is the long term, learned adjustment. The Cobb guys refer to these as ST/LT trims. Short term.
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I've been watching AF Learning go up to +7 or a little higher at idle warming up and also while driving off throttle. Once I have some load on the drive train it goes away and sticks.
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Just checking if: 1) TOTAL AF Correction = AF Learning + AF Correction That is, if the AF Learning Value is, say, 12%, and the instantaneous AF Correction value = 9%, is.
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The AF learning situation I am seeing is negative af learn and that only happens at idle whereas the af correction will pull about 10 or 12% or so and then literally flip flop with.
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The AF learning # 1 The AF correction is a real-time view into what correction is being applied where in the lower load ranges (they dont apply in WOT for newer 08+ models).
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*AF Correction and AF Learning are 2 different parameters. They are often mixed up. Sounds like you mixed them up. When you log full throttle runs your car goes into Open.
