Custom OS#5

[vxchev8]

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

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

Thanks Joe very handy......

[Chuck CoW]

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??? 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

[Tordne]

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

[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

[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

BUMP

[Doc]

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?

[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.

[BowlingSS]

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.

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

Bill

[ntae]

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

[Highlander]

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