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View Full Version : OS#09381344 to COS5 ?'s



wadesns
July 12th, 2007, 04:54 PM
I have a ecm with os 09381344 and am wanting to convert to the new OS5 but am having a hard time following the tutorials and others posts. What i have gathered is that i need to convert to another os before changing over to OS5. After looking through my custom os i cant seem to find the intermediate os. Am i over looking it or can i not change my 00 a4 to a m6 tune that will allow me to use OS5?


Thanks,
..RJ..

wadesns
July 12th, 2007, 05:14 PM
originally it's a 00 a4 pcm flashed over with stock 00 m6 as i run a t56

joecar
July 13th, 2007, 03:33 AM
RJ, you need a manual trans. 12212156 OS.

wadesns
July 13th, 2007, 03:26 PM
so for me to convert to the cos5 first i should download the os #12212156 then transfer my modified tables from my original os to this one? After doing this then i can folow the info in the cos#5 thread. Is this the correct procedure? Also is there a difference between a 12212156 for a camaro vs. a vette?

Thanks,
..RJ..

joecar
July 14th, 2007, 06:42 AM
That's correct, as long as you have a PCM that supports 12212156 (e.g. PCM part #12200411, or a PCM from a 2000+ F-body or Y-body, or...).

First get engine to run on 12212156; then migrate to COS5.

I don't know if 12212156 is different between Camaro and Vette, but either should work.