S2000 Under The Hood S2000 Technical and Mechanical discussions.

Are there any limitations on the Greddy e-mannage ECU????

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Old 10-23-2003, 11:35 PM
  #131  
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Can anyone confirm that I have my jumpers set correctly?



Whenever there was a two pin jumper and it was to be 'open' I fixed the jumper at 90 degrees so it didn't look like a three pin.
Old 10-24-2003, 07:08 AM
  #132  
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Looks right, Aus.
Old 10-24-2003, 07:39 AM
  #133  
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ok, i checked the service manual and fuse #25 controls more than just the power for the ECU memory:

ECM, Gauge assembly, Heater control panel, Soft top control unit

Fperra, have you noticed these things not working or only ECM resetting?
Old 10-24-2003, 08:44 AM
  #134  
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When fuse 25 is pulled, everything works normally when the car is turned ON. However, when the car is turned off, the headlight warning bell won't sound, the A/C controls will be reset, and the security light on the display panel won't blink. The immobilizer will still work fine.
Old 10-24-2003, 01:53 PM
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Gernby is correct.
Old 10-24-2003, 05:40 PM
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ahhhh...ok...ic.

After pulling out the fuse and driving the car, from 1k-4.5k, the car just kept running lean. No matter how much more fuel I added, it just kept bogging and running lean. I couldnt press the gas more than 1/3 or else it just got lean. I upped the fuel a LOT and it didnt change anything.

After 1/3 throttle, it would just completely lean and bog out. This really sucks. Do you guys have any clue as to what might have happened?
Old 10-25-2003, 06:49 AM
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Would this work?

If the ECU is learning constantly during closed-loop, why not learn itself to the maximum it can pull out? For example, with the e-manage, you can control duty cycle. If we increase duty cycle by 50% of the cars duty cycle, the ECU will know this because more fuel. It will then correct itself and decrease duty cycle to compensate for the richened mixture. As time goes on, its always going to see a 50% more rich mixture then it wants and sooner or later its going to decrease duty cycle to the lowest it can go. At that point, wouldn't you be able to fully control closed-loop?
Old 10-25-2003, 06:56 AM
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Does anyone know how the e-manage is actually manipulating duty cycle by Tee-ing off the injector wire? Seems weird that they wouldn't take full control of this wire rather than Tee-off of it.
Old 10-25-2003, 07:27 AM
  #139  
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[QUOTE]Originally posted by futomame
Would this work?

If the ECU is learning constantly during closed-loop, why not learn itself to the maximum it can pull out?
Old 10-25-2003, 07:50 AM
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[QUOTE]Originally posted by fperra


Quick Reply: Are there any limitations on the Greddy e-mannage ECU????



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