Upgrading from 2k OS

[Garry]

I currently have version 09381344 on my 2k Firehawk ... looking to pick up the $50 upgrade ... from what I read, I need to (or should) go to an 01 OS first before doing a Custom OS 3/5 upgrade ... anything I need to watch out for? What then, use a stock 01/02 Firebird tune (with my AutoVE changes copied over)? Where can I get a stock 01/02 OS if needed?

[joecar]

Garry,

Go with the stock 2002 LS1 Firebird tune (with same transmission), find at Tordne's www.holdencrazy.com

open 2 instances of the tune tool side-by-side, and copy/paste table-by-table.

this will allow you to go straight to COS5 using the COS tutorial.

Joe

[ViolatorTA]

I just finished up on my upgrade to a 2002 OS. You could do it 2 ways.

1: Open the 01/02 tune file and your current file. Copy/paste all your info into the 01/02 file like the tutorial states ignoring the files that don't exist from one to the other. Save the file then do a full reflash. Do a read cal and check the tune to be sure everything looks ok.

2: DL the 1999 to 2002 migrated tune from Holden Crazy then copy/paste the files you changed in yours along with VIN #.

You asked the same question in the second part as I just did today. After converting to the 01/02 OS can we move to a COS. From what I read it seems as though this can be done this way. I think once changed over to 01/02 you should be able to flash the COS and then flash the 01/02 cal.
Still waiting on an answer.

PS. Get a stock 01/02 file from Holden Crazy.

[ViolatorTA]

You beat me to it Joe. Along with making it simpler as always...

[joecar]

Thanks. I'm only capable of understanding simple.

Gary, see this also (Violator's thread): showthread.php?p=31682#post31682

[Garry]

OK, went to OS5 today, did all the copying last night (used a 2002 T/A basetune and copied my tables from the old OS over, including the inverted tables). Went through the HowTo, checked all the tables that I was supposed to ... motor runs, but commanded AFR is at 11.0 ... doesn't seem to want to go to 14.6 either ... any idea? Current tune is here ...

Edit: OK, it seems to be just the OL mode that's off - took'er for a spin, went down to the usual AFR soon after ... low MAP values/2400rpm and up seem to be a bit lean, high MAP come up rich at the moment (in between, BENs are +-0.01). Guess I need some more AutoVE again!?

Also logged the TP/RPM, but I guess I need to wait till I got my BENs close to 1.0 again before I do anything with them ...