add Choke to s2r 1K

[pmazdan9]

That's correct it was 1000 on original map, but I've changed it to the figures above, and it worked. I didn't mess around with ignition advance but I think you're right there is a table for that too IIRC!

[Orange16]

Yeah.  The point we've been trying to make to you is that there is no way changing that table can change your idle speed, as the ecu has no way to physically do it.  

[pmazdan9]

I understand what point you're trying to make. My point is, ever since I'v changed these values in the map, it raises idle when cold, which it's never done before. I though it adds more fuel and voila, job done with no air valve controlled by ECU, but looks like I was wrong - as dupainter said, more fuel shouldn't increasse idle unless it runs lean to begin with. Existance of this table in the map confused me (idle vs temp), it shouldn't be there if it's not meant to do the job.

[koko64]

Interesting. 

[Orange16]

The idle control valve fuel versus opening table is also there, it's just all 0.  1000 is either a default (someone at Marelli thought 1000 was a good number) or an "off" trigger.

My guess is that it's really lean as others have said.  How far out are the air bleeds and what's the idle trimmer set to?

[pmazdan9]

The idle control valve fuel versus opening table is also there, it's just all 0. 

I'm not sure what you mean, none of availible tables in my map look like what you describe.

1000 is either a default (someone at Marelli thought 1000 was a good number) or an "off" trigger.

Whether it's true or not, it shouldn't do anything if there's no air valve (assuming it's meant to control it)

My guess is that it's really lean as others have said.  How far out are the air bleeds and what's the idle trimmer set to?

I don't know how far out they are really, recently picked it up from a professional who did my valves and tb sync. There's no oxygen sensor on th '05 if thats what you mean?

Here's the thing: it runs perfectly fine. Idles steadily, rpm doesn't fluctuate at all. Fires up on touch of the button, cold or not. Rides smoothly even at 3k rpm. Pops on decel a little bit, but sounds healthy. Prior to changing map, it was backfiring through an airbox occasionally, and popping on decel really bad ever since I've changed air filter to DP. I've imported PC fuel trim table for similar setup to mine, that is sport filter with open airbox, decat full sport exhaust system with no baffles; whilst I know the fueling is not gonna be perfect as it's only a base map, I very much doubt it's so lean that a bit of extra fuel (assuming this is what the idle vs temp table does) increases idle by 250, or possibly more. I said I doubt it but obviously I might be completely wrong At the end of a day I'm no mechanic, jeez I don't even know that much about this stuff. I'm not trying to defend my statement by all means!

Assuming AFR is perfect, why would extra fuel not increase the idle?

[ducpainter]

<snip>
Assuming AFR is perfect, why would extra fuel not increase the idle?

Because if the AFR is perfect, extra fuel will reduce idle...period, end of report.

The fact that your bike still pops on decel indicates a less than perfect AFR.

[pmazdan9]

Because if the AFR is perfect, extra fuel will reduce idle...period, end of report.

The fact that your bike still pops on decel indicates a less than perfect AFR.

I didn't think it through, I kept thinking enrichment circuit on carbd bikes only adds more fuel. It doesn't, should have done my homework first. Everything makes sense now

Conclussion is, my bike runs lean, idle raises when extra fuel is being added because it brings AFR closer to perfect. I guess Ducati didn't intend to make ECU adjustements availible to public hence why they didn't bother to remove some settings that are not meant to be changed. To confirm that I found I can enable o2 sensor even though I don't have one.

Let's move on