B3605 is gone, but, the 02020005.cal file still has it listed. I've updated the link in the previous page, I don't know why the link went dead!, I never changed anything.Quote:
Originally Posted by Tordne
Cheers,
Ross
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B3605 is gone, but, the 02020005.cal file still has it listed. I've updated the link in the previous page, I don't know why the link went dead!, I never changed anything.Quote:
Originally Posted by Tordne
Cheers,
Ross
THIS OS WORKS LIKE A CHARM! now it feels stock!
This is killing me. I'm on the edge of my pants waiting to get my laptop back so I tinker with this OS...Quote:
Originally Posted by The Highlander
I am still on COS 3 but I am thinking about trying OS 5. Is there anything special I should be aware of when going to this OS?
Bill
:notacrook:
Nothing really "special" to be aware of. You will want to create a MAP which represents the TPS VE Table and just drive around and log a bit. Basically this is what you will need to do to try and build the initial table, as it is a different matrix compared to MAP vs. RPM standard table.
I had problems with Custom OS3 and went back to the regular OS and things seemed good. So I had been reluctant to try Custom OS5, but with all the good reviews I thought what the heck I will try it. So far I am very glad that I decided to give Custom OS5 a try. The TPS VE table makes low rpm, light throttle with a large cam very nice. The IAT VE multipler actually seems to work with this OS where it didn't seem to work for me in Custom OS3.
You convinced me that I need to go to this OS as soon as I can. Light throttle is the only place I have a little problem with now. It would be great to get rid of this headache.:beer:Quote:
Originally Posted by Camaro SS
Thanks.
Bill
I think I'm convinced that I should also make the upgrade to OS5 as I've had a few driveability problems that have crept into my tune ever since I've moved to OS3... and I continue to struggle to resolve. I hope OS5 is the answer I need or else I'm going back to OS1.
How is the tutorial doing? I am getting ready to go to OS5 and was just wondering.:cheers:Quote:
Originally Posted by Black02SS
Bill
I've had a play with the TPS VE and can give you a quick howto (as I see it) for using OS5 and the TPS VE. I have stock cam so I really only did it for a challenge and to work out how to :)
1) You need to have a good VE table - with BENS on or very close to 1.00.
2) You need to change your preferences to view VE Table in "Grams*Kelvin/kPa" units.
3) You will need to log a new PID called GM.VETABLE_DMA under the Tune section. Basically you will need to log this PID to build your initial TPS VE table.
4) Create a MAP that has the same dimensions as the TPS VE Table and use the PID above as the Data.
5) Go for a drive and log. You will need to try and hit as many as possible points in the TPS VE Table MAP.
6) Now copy/paste the values in the TPS VE Table MAP to the TPS VE Table in your OS5 Tune file. You can try and experiment with the copy and fill function. You can probably also use the Linear Fill functions as well.
That my friends is how I did it. After the initial build of the TPS VE Table then I changed the TPS VE Table MAP created above so that the Data was now using the BEN factor. This allows you to fine tune that table going forward :)
I didn't play with cut in/out points for switching between TPS and standard VE Tables. And for initial tuning purposes my suggestion would be to run exclusively off the TPS VE Table as this will allow you to fine tune/correct it. I imagine to use the OS5 ongoing you will need to apply VE correction to both tables at the points where they are active.
Hope that helps some?
Cheers,
What tordne said is pretty much exactly what I did. Except I did limit mine down to under 3000rpm and below 25% throttle. It's pretty difficult to really get good values outside of that area. (Difficult enough to fill up the lower section of the table as it is)
You will want to make sure DFCO is off, it really throws alot of cells out of wack with values wanting TONS more fuel. (I saw lots of 1.3+ BEN factor values in mine)
I found the TPSvsVE table most helpful in my idle region since I have a cam with 24-degrees of overlap (hence very low vacuum and quite erratic)
Anyone run cats with this OS? is it hurtfull for the cat to run at 15.5:1 cruising? will it heat them up too much???? Does COT work with this OS?
Nope Holden stock OS runs up to 17:1 on lean cruise for hours so their cats survive tens of thousands of warranty miles ok. I think its too much fuel that really hurts them.
Correct. Which is why cams with lots of overlap kill catalytics. The cats really like to stay at or above (within reason) stoich.Quote:
Originally Posted by ringram
OK i am not certain of the best way to set up the Throttle % Data table.
I have logged some driving and used the VE table lookup pid.
I have also setup 2 tables - with Throttle % vs RPM (same as the table) another MAP vs RPM same as VE table. Do i get the values by looking at the peak VE numbers and getting a spreadsheet to calculate the % for me to put into A0007 ??
I am trialing it on my car and will aim to see if i can further improve the control of AFRs at low rpm and low throttle under 2000rpm.
Read my post above - it is precisely how I did it when I wanted to test/play with it. Once you get the base numbers I changed the MAP data to be BENS, basically to fine tune the table. Worked very well!
Ross, this TPS VE Table is great. Really helps out low rpm driveability with a large cam. Is there any chance you could make the rpm jump every 200 rpms instead of the normal GM jump of every 400 rpms? I have seen my AFR be off alittle say at around 1800 or 2200 rpms. I know I am being picky, but a higher resolution on the rpm scale would be awesome. :cheers:
John, the issue is GM have some specific routines for RPM lookups that were done in a way to minimise CPU overheads, changing the breakpoints is not a simple task. However, keep in mind with table interpolation it is not jumping from one cell to the next, having said that, there is nothing you can do to the values in between.
Anyway, glad it has helped out somewhat.
Cheers,
Ross
So does this mean I can not use COS5 if I have a 2001 using COS3?? Is this true?????Quote:
Originally Posted by GMPX
Bill
I have just settled with my car using 129005 with the tps enabled under 1200rpm. This is helping it idle better and transition better. Its worth doing with a car with a modded cam and is pretty easy.
I will be using this operating system with 'cammed' cars from now on.:)
I am currently using COS 01250003. Can I use the 1290005 OS? My GM Stock OS was 12202088 (2001).Quote:
Originally Posted by Flyer
I sure would like to try this OS.
Thanks.
Bill
:master: :beer: :notacrook:
Don't think so. The 2002 Camaro was 12212156 from memory. The Custom Os stream 0129000x matches stock OS 12225074, which I believe was only used in Holden Commodores.
That is what I was afraid of. Any idea when/if they will support the 12202088 OS?Quote:
Originally Posted by Tordne
Bill
Check if you can update to the Camaro 02 OS 12212156, I think that is the other OS that Custom OS V5 is done for ;)
Behold the power of search. Too bad I messed my skivies before I found this post.Quote:
Originally Posted by GMPX
Why do you need OS5 support for that OS?Quote:
Originally Posted by BowlingSS
Bill, you can probably upgrade to 12212156 and then go to the 02020005 V5 OS.
YOU CAN USE COS5... you JUST have to manually copy and paste all your calibration data INTO that OS.. that is all! :)Quote:
Originally Posted by BowlingSS
BTW.. copy entire segment doesn't work.... is this still supposed to work? its greyed out.
Copy entire segment does work, did it the other day :) Not between different OS's though obviously.
open a tune and an alternate like you are doing a comparison. Then it is available.
Ah.... actually
with all the table numbering being exactly hte same for all OS, it should be available... That is all left as an editor.
That is what I did. That works fine. You just have to copy/paste all your cals.:beer:Quote:
Originally Posted by Tordne
Bill
:cheers:
As it stands.... What features will this give over 7.3??
Bill,Quote:
Originally Posted by BowlingSS
That's what I did, handraulically copied each table from 12202088 to 12212156.
It seemed a little tedious :bash:, but it wasn't so bad :cheers:.
For anyone listening in wondering the purpose of doing this:
doing this this makes it easy to copy the old calibrations to COS5 (as said by the COS tutorial):
write the entire flash with 02020005,
write calibration only from 12212156
(and then read the entire flash and save to file, don't forget this step).
nitro,Quote:
Originally Posted by nitrorocket
COS3/COS5 allow you to run SD with the use of both hi and lo octane spark maps;
is that what you're asking...?
joe
In addition, OS5 offers a TPS VE that tames a wild cam (on the low end) fast.Quote:
Originally Posted by joecar
Can this OS5 custom operating system work with the VZ LS1 PCM operating system. So far ive been just leaving these all with modded maf calibrations rather than changing anything drastically.
I think the VZ has a 1024Kb PCM with Ethanol stuff in it. Id say you were out of luck at the moment.
Hey everyone,
I just upgraded to the COS5 from a stock 2001 OS. I was able to upgrade with no problems on the PCM side of htings, checked all parameters and made sure everything was on target with my original tune and all. Well, went to start it up, and bam...idles like death and doesn't hold the idle at all, jumps all around. My AFR is also way jacked up as well and the commanded AFR is not where it needs to be like it was before the change. i looked over all of the parameters and I can't find the target of the problem. So, I figured maybe the CASE parameters didn't actually make it through, so did a CASE relearn and that also didn't help either. I really don't know what to make of this, its very strange to me and I just don't understand what is going on. When I first made the change over, the AFR was SUPER lean, like in the 20's so I had to shut it down and adjust the VE table...which in the original tune was perfect in the idle areas...about 15% to get it close. I just am clueless whats causing the problem.
Here is my tune and a log of the madness, please take a look!!!
Thanks,
Adrian
Another thing I can't wrap my head around is why all of my units changed from Standard to Metric without messing with the config files...wtf is going on!?
Alright turned out it was the missing table and I had to update the .cal file. Thanks Andy!! But the random changing of the units is still a little confusing to me....not forgetting to mention that the "Electronic Throttle Control" folder popped up randomly under engine calibrations in my 2001 file and it and its 3 tables were all red and then it disappeared...weird.
Adrian