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Mustang Forums
2011-2014 Mustangs
Engine/Tuning
New TSB concerning aftermarket tuning and modifications
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<blockquote data-quote="SicShelby09" data-source="post: 10851674" data-attributes="member: 109000"><p>I was told that the only way they can tell the computer was messed with is if there was not enough drive cycles recorded. Or the long term fuel trims are not learned enough. Its like resetting your average gas mileage in your car. At first it reads high or low depending on how you are driving at the moment, but after a while of driving it starts to get to your actual average. It needs time to calculate it. The same holds true for the long term fuel trims. They can tell if you just flashed it, but if the car is drivable, then wait a week and continue to drive it after you flash it back to let the computer relearn the fuel trims. Then you should be ok.</p></blockquote><p></p>
[QUOTE="SicShelby09, post: 10851674, member: 109000"] I was told that the only way they can tell the computer was messed with is if there was not enough drive cycles recorded. Or the long term fuel trims are not learned enough. Its like resetting your average gas mileage in your car. At first it reads high or low depending on how you are driving at the moment, but after a while of driving it starts to get to your actual average. It needs time to calculate it. The same holds true for the long term fuel trims. They can tell if you just flashed it, but if the car is drivable, then wait a week and continue to drive it after you flash it back to let the computer relearn the fuel trims. Then you should be ok. [/QUOTE]
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2011-2014 Mustangs
Engine/Tuning
New TSB concerning aftermarket tuning and modifications
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