S2000 Under The Hood S2000 Technical and Mechanical discussions.

RSX ECU swap??

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Old Jul 1, 2003 | 07:04 PM
  #21  
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who has a link to the mods for the rsx-s at that much hp?

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MAtt
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Old Jul 2, 2003 | 12:18 AM
  #22  
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[QUOTE]Originally posted by pierceman
[B]who has a link to the mods for the rsx-s at that much hp?

Thanks
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Old Jul 2, 2003 | 11:12 AM
  #23  
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[QUOTE]Originally posted by pierceman
[B]who has a link to the mods for the rsx-s at that much hp?

Thanks
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Old Jul 2, 2003 | 11:30 AM
  #24  
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Originally posted by infinitebass
The ECU doesn't learn that quickly. It usually takes a couple of weeks I believe. You must consider that most dynos are done immediately after resetting the ECU, so it doesn't have a chance to learn.
Ummm, no. As soon as you start the car it is using the various sensors to calculate the best settings. Once it is fully warmed up, it really uses all available data. It may use previous settings as a guide, but in no way is it constrained to them. If that were the case, then a change in elevation would severely hamper it.

Reason two why it doesn't take a couple of weeks. One, the ECU has no bearing on the time. If it did, other functions of the car would be tied into. Two, define a couple of weeks in terms of distance. A couple of weeks for someone that drives 50 miles one way to work five days a week is very different then someone that only drives it on the weekends when the weather is nice. Three, if the engine started to knock, it would take a couple of weeks for the timing to retard.

The ECU is always "learning' and uses current data to adjust the various parameters.
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Old Jul 2, 2003 | 11:47 AM
  #25  
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It depends on what learning you are talking about. I have found that it takes around 4 driving cycles for the idle quality to improve, but it takes many driving cycles for it to tune out the fuel corrections of a V-AFC that has the throttle settings too low or is programmed for narrow throttle fuel corrections.
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Old Jul 2, 2003 | 12:28 PM
  #26  
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Just as Gernby said, and there are many topics on this, it takes time for the fuel maps to adjust. That is why resetting the ECU can show noticeable gains on the dyno.

Do a search on it, and you'll find that it can take a while for it to "tune out" the gains of a CAI.

Blake
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Old Jul 3, 2003 | 04:37 AM
  #27  
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It doesn't take a couple of weeks though. The ECU has an algorithm it uses. It doesn't constantly use old information and then finally accepts it a few weeks later. It can and will use past information to determine if there is a problem. The ECU adapts quicker then you think.
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