The ECU/TCU is self learning..... - TundraTalk.net - Toyota Tundra Discussion Forum
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post #1 of 4 (permalink) Old 02-08-2017, 10:55 AM Thread Starter
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The ECU/TCU is self learning.....

I'm sure I'm about to ask a stupid question, but oh well. What exactly does "the ECU/TCU is self learning" mean? If you drive smooth and keep your rpm's under 2k vs rpms around 2400, it'll perform differently?


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post #2 of 4 (permalink) Old 02-08-2017, 05:55 PM
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Yes my understanding is if you drive aggressively it learns that and anticipates it with shift points and holding th gear for a higher rom. If you drive like an old lady it'll adapt to that.

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post #3 of 4 (permalink) Old 02-08-2017, 06:33 PM
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They made the ECU's with metal taken from the pot the terminator was lowered into. Be careful.


They don't learn. They calculate based on historical data.
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post #4 of 4 (permalink) Old 02-08-2017, 07:39 PM
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There is A LOT of misconception on what the ecm learns. On the engine side of things the ecm self learns fuel control, driver input has absolutely nothing to do with how that is learned. On the transmission side the biggest thing that is learned are fluid pressures required for proper shifting. This is pretty important during initial learning of the trans so it is very important that the vehicle be driven normally so everything can learn properly. Driving like an asshat or a grandma detrimentally affects how the trans learns and therefore overall trans performance. Disconnecting the battery or clearing codes WILL NOT RESET TRANS LEARNED VALUES, they must be reset with a Techstream.

I'm not judging...I'm just sayin


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