Self-learning ability of the ECU?
03-16-05, 11:16 PM
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Self-learning ability of the ECU?
Does anyone know anything about the self-learning ability of the ECU? I've read on some Japanese pages that the ECU has an ability to break in a new engine among some other things. Does anyone know anything about this? Is it just the 16-bit ECU or does the 8-bit also have this function?
03-17-05, 12:07 AM
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I would be its the 16 bit; and its also mainly cars with MAF sensors. Example the WRX can run alot higher than stock boost and still have no problems with the ECU throwing codes.
03-17-05, 02:06 AM
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Almost any modern ecu (the stock FD ecu included) has basic learning functions for idle and load conditions. I don't know if there any other functions that are "self-learning". What's the point of your question?
03-17-05, 02:15 AM
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Originally Posted by Fatman0203
I would be its the 16 bit; and its also mainly cars with MAF sensors. Example the WRX can run alot higher than stock boost and still have no problems with the ECU throwing codes.
03-17-05, 02:24 AM
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Originally Posted by BoostFrenzy
but anyone with a modified wrx and a factory ecu is just asking to pop ringlands with their careless mods CEL free heh
03-17-05, 12:02 PM
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Originally Posted by rynberg
Almost any modern ecu (the stock FD ecu included) has basic learning functions for idle and load conditions. I don't know if there any other functions that are "self-learning".
03-17-05, 08:32 PM
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Originally Posted by rynberg
Almost any modern ecu (the stock FD ecu included) has basic learning functions for idle and load conditions. I don't know if there any other functions that are "self-learning". What's the point of your question?
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03-17-05, 08:52 PM
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Originally Posted by jimlab
And they would be limited to the stock configuration at that. We (you) don't have a MAF-based system like the Supra where the ECU can compensate for major increases in air flow into the engine.
03-17-05, 08:53 PM
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Originally Posted by daem0n
Well I've read that the self-learning ability of the ECU would allow a proper break-in of a rotary engine for 1500 kms...but this is in Japan. I just never heard of this feature before and I'm thinking if the ECU has that ability then it might have other things that we don't know about...
03-17-05, 10:24 PM
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Originally Posted by rynberg
Right. I was only talking about idle and electrical load conditions, not adjusting for air flow differences.
03-17-05, 11:18 PM
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Originally Posted by rynberg
I'm not following you, what do you mean by "allow a proper break-in"? Doesn't make any sense. Proper brake-in means no WOT and no over 4k rpm for the first 500 miles, plus what ever additional requirements your engine builder wants you to follow. I don't see what the ecu has to do with this.
03-18-05, 12:11 PM
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the ecu does have a mileage switch that changes states at 20,000 miles. i have never heard a definitive anwser on it's function but it seems like it would be emmision related. not realy to break the car in.
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