Quote Originally Posted by Highlander View Post
Since this guy has a 2000 OS he can use a COS5 on it and I can make any cax file with any parameter. Not that he is going to need it, but COS5 is the best OS for an 0411 ECU, PERIOD. Unless anyone breaks the 512g/s limit, and i don't see that happening on an old outdated ECU, Efilive has everything and way much more than you could like. Once you start using EFILive you will fall in love with it and not look back.

Thanks
Little off topic here but can you write a cax file for the 12212156 OS on the 411 Pcm's for 2 bar or 3 bar Support??? Or could you modify the COS5 to support the flex fuel option???

The 411's had flex fuel capability with 12212156 OS with the L59 engine option but there is no COS for that OS with support from EFI live.

I have been told the only option is to Use HPT with a COS to get 3 bar support or upgrade to a 1 MB PCM/ECU