S2000 Engine Management Engine management topics, map and advice.

DocTronics Plug & Play Honda S2000 ECU for 2000-05 Models

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Old Aug 25, 2020 | 01:04 AM
  #191  
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What you suggest can be done with the doctronic. You can see it on the picture above.
You can activate knock sensor, and MIL flash on knock, and let the "full knock control" off.

To be honest, I am in the same situation with my own tune, made by another tuner (not doctronic). All my knock features are off.
My question is: as I am supercharged, do I have to make some adjustments in the knock tables ? I mean, we can assume that my engine makes more "noise" than NA stock one, so maybe my knock tables have to be modified... but how to do that ??
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Old Aug 25, 2020 | 04:06 AM
  #192  
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Originally Posted by pizzai69
Doctronic tuned it in person, or with remote tuning ?
I know that some tuners don't rely on the S2000 knock sensor that they say is not "accurate".
Yes, he did it in person.
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Old Aug 25, 2020 | 04:31 AM
  #193  
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Probably want to enable the purge system, also ELD but that maybe not as important.
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Old Aug 25, 2020 | 04:42 AM
  #194  
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I personnaly don't know what the purge system and the ELD are.

What is know is that my wideband signal is wired to the ELD input, as recommended by Doctronic. There is a parameter in the setup options, to "Use ELD input as wideband O2".
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Old Aug 25, 2020 | 06:02 AM
  #195  
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Purge system, purges the fuel vapors from the charcoal canister to inside the intake manifold.
If it is constantly off the charcoal canister will eventually be saturated with fuel and you will have fuel smell and problems when filling the tank.
Might take a very long time for it to happen though but I see no reason to not use it unless racecar
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Old Aug 25, 2020 | 09:22 PM
  #196  
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I can confirm that my car smells much more like fuel after a drive sitting in the garage. Thank you for that info. Have a docecu tuned by himself as well. All these settings were turned off as well.
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Old Aug 26, 2020 | 12:38 AM
  #197  
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If it's been going on for too long you might need to replace the charcoal canister.
17011-S2A-A01
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Old Aug 26, 2020 | 05:37 AM
  #198  
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Originally Posted by flanders
Purge system, purges the fuel vapors from the charcoal canister to inside the intake manifold.
If it is constantly off the charcoal canister will eventually be saturated with fuel and you will have fuel smell and problems when filling the tank.
Might take a very long time for it to happen though but I see no reason to not use it unless racecar
Holy crap, thanks for that info. I already have that option disabled for ~5000km.....
So Purge System should be always on.

What about ELD? I have no idea what it is and I still have the OEM lambda sensors in use. So should I enable ELD or not?
Also I just enabled the knock sensor + flash MIL on knock. But I left the "Full knock control" disabled.

Additionally: Anyone got the immobilizer to work?

Last edited by zakazak; Aug 26, 2020 at 05:51 AM.
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Old Aug 26, 2020 | 06:48 AM
  #199  
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Electrical Load Detector measures the current flowing through the main fusebox and I think the ecu uses this signal to regulate the voltage output from the alternator.
From the service manual.
The alternator signals the ECM during charging.
The ECM then controls the voltage generated at the alternator according to the electrical load determined by the ELD
(Electrical Load Detector) and driving mode. This reduces engine load to improve fuel economy
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Old Aug 26, 2020 | 06:50 AM
  #200  
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So it makes sense to have it activated. The question now is if the Doctronic ProECU correctly supports it.
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