Miata Turbo Forum - Boost cars, acquire cats. - AFR Tables... Tuning and Closed Loop looky what i did!!!

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- - AFR Tables... Tuning and Closed Loop looky what i did!!! (https://www.miataturbo.net/megasquirt-18/afr-tables-tuning-closed-loop-looky-what-i-did-30518/)

MikeRiv87

01-19-2009 10:59 PM

AFR Tables... Tuning and Closed Loop looky what i did!!!

So i think i found out a pretty slick way of getting my fueling tuned in nicely using megalogviewer and also having a great resolution afr table for closed loop operation. Take a look, what do u think?

Here is a snap shot of my afr table within my .msq. I have my car set to go into open loop at 120kpa. So I scaled my afr table to match and now have great resolution for cruising around town and on the highway.

http://i40.tinypic.com/i6w8r8.png

Next i setup the default afr table within megalogviewer which also has one cell for every fuel cell so it tunes it in much better:

http://i40.tinypic.com/f1jrps.png

What do u guys think? Pretty cool huh?

Braineack

01-19-2009 11:26 PM

you are strong in the force!

MikeRiv87

01-20-2009 12:49 AM

So it was a good idea? I couldn't see any drawbacks to my evil plan...

ThePass

01-20-2009 03:00 AM

Stupid question but what exactly is open loop vs. closed and what does switching to open loop mean/what would be the benefit of setting it higher than the normal value (53 kpa)?

Savington

01-20-2009 03:56 AM

I wrote this when I was quite drunk, but it is correct.

Quote:

Originally Posted by Savington (Post 321150)

I'm drunk, so excuse the absurd pre-school style conversations.

open loop
ECU: Sup O2 sensor.
O2 sensor: Sup ECU. You're a little too lean.
ECU: No fuck you O2 sensor.

closed loop
ECU: Sup O2 sensor.
O2 sensor: Sup ECU. You're a little too lean.
ECU: OK, we'll add some fuel to that shit.
O2 sensor. C00l.

SweetMX5

01-20-2009 04:10 AM

haha good description ^^

NA6C-Guy

01-20-2009 04:39 AM

Quote:

Originally Posted by Savington (Post 355804)

I wrote this when I was quite drunk, but it is correct.

:giggle: Thats pretty good stuff!

johndoe

01-20-2009 07:35 AM

maybe it's just me but I'm failing to see what's revolutionary about this?

kewilso3

08-18-2010 09:54 AM

where can I change my switch point in TS?

Braineack

08-18-2010 09:55 AM

Quote:

Originally Posted by kewilso3 (Post 618042)

where can I change my switch point in TS?

MS-II calculates it when you calibrate the AFR sensor.

richyvrlimited

08-18-2010 10:34 AM

Unless you mean a NB switch point in which you need to update to the latest code as the devs forgot to include the code in the .ini which let's you see the dialogue box...

Don't think 3.0.3xxx has been done yet but 2.1.0xxx was put on the forum today

18psi

08-18-2010 10:37 AM

Quote:

Originally Posted by Savington (Post 355804)

I wrote this when I was quite drunk, but it is correct.

brilliant:giggle:

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