I've been collecting CAX files 12587603 and noticed the COS 5 is mentioned in the files but it's not on my machine and I can't find anything else on it. Does it exist by special order or are 12225074 and 12212156 the only ones available?
I've been collecting CAX files 12587603 and noticed the COS 5 is mentioned in the files but it's not on my machine and I can't find anything else on it. Does it exist by special order or are 12225074 and 12212156 the only ones available?
2001 Camaro SS
EFILive Custom OS3
It does not exist sorry, I'm not sure why there would be a reference to it.
I no longer monitor the forum, please either post your question or create a support ticket.
I've been searching to see if COS5 and flex fuel are at thing but I only see two OS's supported. Am I missing anything?
2001 Camaro SS
EFILive Custom OS3
If there is only two COS5's on OS's that support FlexFuel then that is what you need to choose from.
I no longer monitor the forum, please either post your question or create a support ticket.
I only see support for 12225074 and 1221215 in 'C:\Users\New Owner\Documents\EFILIVE\V7.5\Bins\Custom OS" neither of which have flex fuel.
2001 Camaro SS
EFILive Custom OS3
Oops! Nevermind... I found some posts that explain the situation and I'm only 10 years or so behind the curve. SNAFU!
The reason I was asking is I picked up a 95 Z/28 LT1 Torqhead conversion that has flex fuel and it got me thinking I'd like to update my SS to match. The problem is I don't want to loose my RoadRunner and the only 512M OS that supports flex fuel, 12216125, does not have a COS written for it. So I started looking at 1M PCM's and saw there's no COS5 for them... not the end of the world but between the two features, a pretty big loss to get flex fuel. I can use COS3 but saying bye to my Roadrunner is just sad...
Back when the COS was being developed, I never though twice about it because E85 was rare and the sensors were expensive! I guess there just wasn't enough available room in 12216125 to do it? (not that I expect you to start now but it would be nice lol)
2001 Camaro SS
EFILive Custom OS3
Yes I remember the sensors were very expensive back then.
However for my own curiosity I had a look at 12216125 and yes indeed that binary is full! Approx 1000 bytes spare in the whole 512K so not enough to do what we need for a COS. Probably why GM started rolling out the 1Mb PCM in 2003.
I no longer monitor the forum, please either post your question or create a support ticket.
This is probably why custom OS wasn't done (of course Ross is correct)... you are looking to do Nitrous with E85? I know it has been done on the 1mb ecms.
"All that is needed for the triumph of evil is that good men do nothing..."
No just trying to decide on staying with P01 or P59...
2001 Camaro SS
EFILive Custom OS3
P59>>>>>>>>>>p01
"All that is needed for the triumph of evil is that good men do nothing..."