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Old 12-25-2007, 09:21 PM   #1
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Default Gamma and o2 driven enrich

Ok... the two last key concepts i need to learn

What are gamma enrichments and how do i tune them or shut them off for tuning??

how do i control 02 driven enrichments?? mine is staying at 100%
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Old 12-25-2007, 09:33 PM   #2
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O2 driven enrichments are EGO, set your step size to one and it should work if you have your afr targets turned on.

From the megamanual:
GammaE
Gamma is the total enrichment factor, computed by MegaSquirt® taking into account all of warmup, acceleration/deceleration, barometric, and manifold air temperature sensor correction factors, but excluding EGO correction, which is handled separately (See Corrections/Enrichments, below.) Returned from MS as a percentage value in "gammae."
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Old 12-25-2007, 09:58 PM   #3
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Quote:
Originally Posted by cjernigan View Post
O2 driven enrichments are EGO, set your step size to one and it should work if you have your afr targets turned on.
those are actually differnt. if you have step turned on, and targets off, it adjusts around your sensor switchpoint (stoich) while in closed loop
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Old 12-25-2007, 10:03 PM   #4
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so how do i turn on O2 driven enrichments...
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Old 12-25-2007, 10:19 PM   #5
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step size - 0 to turn off

step - 1 to turn on

Last edited by bryantaylor; 12-25-2007 at 11:15 PM.
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Old 12-25-2007, 10:34 PM   #6
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my stepsize is 0... target tables are turned on...still the guage always reads 100

how can i host my MSQ so i can post it up
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Old 12-25-2007, 10:51 PM   #7
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Quote:
Originally Posted by 240_to_miata_OWNER View Post
my stepsize is 0... target tables are turned on...still the guage always reads 100

how can i host my MSQ so i can post it up
it should be 100 IIRC more than 100 means its adding to your VE, less means its taking away from your VE. 100 mean your getting 100% of your VE.
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Old 12-25-2007, 10:52 PM   #8
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yeah it should be 100...when its not correcting
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Old 12-25-2007, 11:14 PM   #9
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opps, i thought you wanted to turn OFF. step - 1 to turn it ON. i should slow down when reading posts i edited my above post to not confuse anyone else
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Old 12-25-2007, 11:22 PM   #10
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when/how does it use the target tables

(sorry for my stupidity)
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Old 12-25-2007, 11:59 PM   #11
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Quote:
Originally Posted by 240_to_miata_OWNER View Post
when/how does it use the target tables

(sorry for my stupidity)
i have never used the target afr function, so im not sure. but i would assume that when target is turned on, it over looks the switchpoint in closed loop. you might have to make it where you are always in closed loop to make them work though
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Old 12-26-2007, 12:00 AM   #12
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RTMFM
http://www.megamanual.com
Your questions are better answered by doing your own research. You have access to the most comprehensive source of information for ECUs and you seem to not like using it. If you're going to successfully do anything with megasquirt you need to put in some effort.

http://www.msextra.com/manuals/MS_Ex...htm#egocontrol
http://www.megamanual.com/megatune.htm#se
(/Babysitting)
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Old 12-26-2007, 12:08 AM   #13
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thank you... i took a quick breaze thru the megamanual and didnt find what i was looking for. i appreciate u taking the time that i didnt. Ive been spending more time researching on why my warmup enrichments are going crazy (see other thread)
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Old 12-26-2007, 12:10 AM   #14
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Quote:
Originally Posted by cjernigan View Post
RTMFM
http://www.megamanual.com
Your questions are better answered by doing your own research. You have access to the most comprehensive source of information for ECUs and you seem to not like using it. If you're going to successfully do anything with megasquirt you need to put in some effort.

http://www.msextra.com/manuals/MS_Ex...htm#egocontrol
http://www.megamanual.com/megatune.htm#se
(/Babysitting)
just needed to quote this
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Old 12-26-2007, 12:20 AM   #15
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come on now... dont get all miata.net on me
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Old 12-26-2007, 12:23 AM   #16
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do these setting look ok when using an lc-1?

also, when I'm tuning and want to kill ego correction I can just go to "open loop" in more settings and set the kpa switch point to 0...right? Why not run ego correction at idle...even though my tuning is spot on ATM.

thanks.
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Old 12-26-2007, 12:25 AM   #17
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your switchpoint should be 2.5 for a wideband
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Old 12-26-2007, 12:28 AM   #18
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Quote:
Originally Posted by 240_to_miata_OWNER View Post
your switchpoint should be 2.5 for a wideband
i assume because that's the middle of the voltage range? What does that switch point refer to?
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Old 12-26-2007, 12:29 AM   #19
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correct...the switchpoint is essentially the stoich. voltage... wideband is 0-5 and most (including inovative) switch at 2.5
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Old 12-26-2007, 12:30 AM   #20
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Quote:
Originally Posted by 240_to_miata_OWNER View Post
correct...the switchpoint is essentially the stoich. voltage... wideband is 0-5 and most (including inovative) switch at 2.5
why don't I want a larger step size? 1% change is not very much. Why not say...10%?
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