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onfire
December 3rd, 2006, 10:38 AM
After I modified the tune per the EFI Live COS Tutorial, I can't get the STFT's to move off zero when I log. The tutorial says when Closed Loop is Disabled and STFT is disabled, B3647 is dominant and a semi loop state is enabled with o2 feedback through stft's.

Is there a special pid other than stft bank 1 and 2?

TAQuickness
December 3rd, 2006, 12:21 PM
What's your EQ or commanded AFR?

onfire
December 3rd, 2006, 12:35 PM
14.6 in B3647 0 to 90kPa . Also 14.6 in the stoi table.

Do you have to enable B4108 or B4205? I also have B3801 disabled and B4101 set to 80kph. Just not sure of the mix to get "semi closed-loop".

TAQuickness
December 3rd, 2006, 12:55 PM
IIRC, you will need to adjust B4205 back to stock to enable STFT's. You might want to wait for someone else to chime in as I've been !nb for some time now.

Tordne
December 3rd, 2006, 05:07 PM
B4108 relates to idle so you can enable that if you want...

Strictly speaking to enter Semi-Open Loop mode you simply need to have the intended cells in the B3647 table set to the same value as B3601. If your tune doesn't have the B3601 table then it is hardcoded to 14.63:1. If you use dsplay units of EQ Ratio then just set the cells to a value of 1.00.

onfire
December 3rd, 2006, 05:14 PM
B4108 relates to idle so you can enable that if you want...

Strictly speaking to enter Semi-Open Loop mode you simply need to have the intended cells in the B3647 table set to the same value as B3601. If your tune doesn't have the B3601 table then it is hardcoded to 14.63:1. If you use dsplay units of EQ Ratio then just set the cells to a value of 1.00.

B3601 is set to 14.6

Cells in B3647 is set to 1.0 (In lambda)

But, STFT's are not logging with B4108,B4205 and B3801 disabled.

Thanks for the tips, I'll play more tomorrow....this COS5 stuff is addictive.

onfire
December 4th, 2006, 01:57 PM
To get "semi open loop" on my car:

B3647 must be 1.0 in all lower cells.(less than 80kPa)

B4108 must be enabled.

B4205 must be enabled.

Keep the LTFT disabled.

B3601 = 14.6

Now the STFT's log on FS.

onfire
July 21st, 2007, 02:17 PM
having problem with custom operating system 5 cant get closed semi closed loop to work tryed ever thing i have read here. i have done custom os3 3 other times they all worked i have about 7 tunes i tryed if some one want to look at them

Post up a tune.

Doc
July 21st, 2007, 02:24 PM
having problem with custom operating system 5 cant get closed semi closed loop to work tryed ever thing i have read here. i have done custom os3 3 other times they all worked i have about 7 tunes i tryed if some one want to look at them

I'll look at em'

69camaro5speed
July 22nd, 2007, 12:16 AM
nothing like working all weekend on a problem you know you just over looked some thing while wife and kidds are wanting to do some thing.not giving up easy will kill me some day lol