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What Motes told me is, it's not the Roadrunner itself, it's that there are so many variations in p59 ECM that they wound up with a poorly selected batch of ECMs which gave them support headaches so...

mine only has 512M memory so its teh end of the road

sure thing unless you're loosing your roadrunner in the process :P

No just trying to decide on staying with P01 or P59...

Anyone have access or knowledge of 12216125 OS with a manual trans produced in Mexico? I see a lot of people asking for the MT to segment swap but I can't find any information. my google fu is not...

Have you seen this --> https://forum.efilive.com/showthread.php?14439-Idle-Tips-amp-Tricks

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...

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.

I haven't seen where anyone collected the CaX patches n one place so here it is, minimally tested but appears fine. The file includes B3106-10, B7000, B9000, B9021, B9103, D1111 and D2400 which are...

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?

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...

reasonable

It has always been stated that no reversals are allowed or even supported. Did you loose something? What is the reason behind wanting to downgrade?

I extrapolated the tune from the black box computer way back when I first did the 0411 swap and it's done pretty well.

I've looked at everything I can find and it looks like the factory never used 12212156 with a big block. My solution was to start with a 2500 6.0/4L80e/4x4 tune, swap in the system segment from an...

I appreciate these bins. I will compare the 2002 bin to the one I made using a 2500 silverado and seg swapping in the system from an express van tune.. the ladder got me better but not perfect...

No. this thread needs to be locked. No longer relevant...

Thanks! More to toy with :)

You should PM lextech for the 0411 spreadsheet. should be easy enough to figure out the rest.

It's only money!

Thanks for the info. I'm chasing down a problem with the trans segment in my express van tune on my 99 L18 and no matter what I segment swap, it's just not right. I thought maybe there is a better...

Sure I can make something but I was hoping to find a factory tune for a big block that is 12212156, 4x4 and 4L80e. It doesn't have to be for an 8.1 I just thought that would be a good target. Maybe...

I was hoping for a factory combination.

Makes sense. Thanks!

Thanks. TIS is working again... that VIN comes back with the OS 12216125. Looks like they didn't use 12212156 in that combo.

Still interested in getting a 2002 8.1L/4L80e/4x4 tune. everything I'm...