Custom OS#5

Quote:

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Originally Posted by joecar

Attached is my note taking while reading thru this [long] thread.

For COS5 cal/tun files, see here: showpost.php?p=50208&postcount=218

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Thanks Joe very handy...... :cheers:

Hey Guys...I read through this whole thing and I can't seem to fins the answers I need.....

I've got an 03 ZO6 with the o/s # 12593358.

I want to use the cos#5, but I can't seem to find the calibration it works with.

By the #'s I thought I was looking for 02040005 but it seems that someone else had the same problem as me...IT DOSEN'T EXIST.

Now, my pal Howard e-mailed me a COS 5 but it appears to be an automatic calibration....I need a stick.

Now, I'm a bit confused....I've gone though a vast library of "original GM bins" and tried everything from 02-03 ZO6's and even a bunch of other LS1 standard shift bins and LIVE tells me none of them are compatible with COS5.

Are there rules somewhere I neglected to read???:bash: I'm sorta following the COS upgrade chart (os5 is not on it yet) and not getting this.

Does anyone have an stick shift ETC that works in custom os5..????Preferably an 02-03 ZO6 bone stock calibration....I'd rather not have to un-do someone elses tune.....

Thanks
Chuck CoW

COS5 is only available presently for two operating systems:
- 12212156 (2002 F/Body) = COS5 02020005
- 12225074 (Holden) = COS5 01290005

Hey guys.....

In COS5....I've had success improving the VERY cold start up by trimming the fuel in A0008 (open loop ect commanded fuel multiplier)

I was able to EXACTLY command the startup AFR and the thing starts AMAZING even when it's cold as hell....

But, In driving it today, I think I noticed my fueling was off and it ran bad.

QUESTION: is A0008 used for warm-up AND WOT conditions??

Do I need to bring PE in sooner to fix it? I seem to remember something about the pcm using "whichever is richer" PE or open loop commanded....

How does it work in COS5?

Chuck CoW

Quote:

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Originally Posted by Chuck CoW

Hey guys.....

In COS5....I've had success improving the VERY cold start up by trimming the fuel in A0008 (open loop ect commanded fuel multiplier)

I was able to EXACTLY command the startup AFR and the thing starts AMAZING even when it's cold as hell....

But, In driving it today, I think I noticed my fueling was off and it ran bad.

QUESTION: is A0008 used for warm-up AND WOT conditions??

Do I need to bring PE in sooner to fix it? I seem to remember something about the pcm using "whichever is richer" PE or open loop commanded....

How does it work in COS5?

Chuck CoW

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BUMP:bash:

Chuck,
It's just a multiplier/modifier table. You should only have to modify the sub normal fully warmed up cells in A0008. The rest (60 deg C and up) should be set to "1" which will not afffect your final commanded fueling.

Is your problem final commanded fueling or final actual?

I would like to know if any of this OS's have the ability to change injector balance, to add 1% to cylinders 7 and 8 as we have the ability on LT1 engines.

Quote:

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Originally Posted by Highlander

I would like to know if any of this OS's have the ability to change injector balance, to add 1% to cylinders 7 and 8 as we have the ability on LT1 engines.

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I do not think so. At least I have not seen anything on this.

Bill
:cheers:

Ross /Paul

can we have OS 5 in the downloaded install OS folder to make it easer ,save having to place os5 in there after an install . i would say most people in OZ would use os5 as the base ls1 os


Geoff

I have been using for a LOONNG time COS5 with ETC, although this is a 512kb pcm...