Somehow I knew you'd be first to chime in! You always have some helpful information. Question, when changing programs, will the tuner need to upload information for the 87 perfomance tune? In other words will the tuner need to upload that particular tune like it did when I first installed the 87 tow tune?

 

Hey Mitch.

I think the best way to visualize this is; there are three files (tunes) stored in non-volatile memory on the Xcal2, along with the initially saved stock tune file.

There is also an area in the PCM reserved, where the stock tune file lives.

The first action you take (rather, the Xcal2 takes), is to copy the stock tune file from the PCM to the Xcal2.

Next step, if you are gonna be loading a new tune, is the PCM reserved NVM space is erased, and the KAM is cleared (where the adaptive strategy stuff lives).

Next, the selected new tune file is written - a straight file write, with attendant sanity ( CRC, whatever) checks to ensure a reliable write.

Now - if you wanna load yet another tune - it's just a repeat of the erase/write/check process.

They're really just files - in a different format, but still just files. Bit for Bit replacement.

Kinda simplistic, but there it is.

bubba

 

Is there a way to tell what tune you already have loaded in if you forget? In other words, I have a 93 Tow and 93 Perf. tunes. Before I take a chance on towing I want to make sure I am in the tow mode. Is there a way to check this?

 

Plug 'er in - it'll show ya what's currently in use.

Or - do what I do - put a sticky note on the back of the Xcal2, with loaded tune info & a date.



b-b-b-bubba

 

my 5-8 week wait began this morning

 

Excellent!

Got a hobby? No? Go start one !

bubba

 

yeah i wouldn't get my hopes up if i were you. it is exactly 11 weeks for me today.

 

nah i think im just gonna go hibernate

dammit bubba now you made me too anxious already...and i have a long ways to go

 

MSALL150,what did ya get for tunes??
The Troyer tunes are great

Gotts,Hope they come soon for ya!!!

 

well i got an xcal2 off someone for cheap, so i decided "what the he!! might as well get troyers tunes for it."

i do mostly highway driving to the ranch and to the duck blinds, and also to college and back (duck blinds are 30 mins from campus ), with occasional towing. my engine has seen only 87 octane fuel for the first 75k of its life, so i got 87 perf and 87 tow, along with a 91 perf tune also. but now its just for the wait.

 

Nah .. no sweat - you'd be surprised just how fast needlepoint passes the time

Although - hibernatin's good too! tell you what - I'll wake you up when it's time !

bubba

 

What i did to pass the time was during the weekends i did stuff to make it run it's best like tune-up.I also re fabbed my exhaust yet again.For the first month i didn't even think about it!!Also try not to read the posts in this section as it only leads to impatience
I would suggest the duck hunting Shoot some birds for me

 

AND - you built some awesome furniture

 

always

ill hold you to it! btw MGD is great.

 

Ya fogot about that!!!Thank you sir!!!!
I still have to take some pics of some of the other stuff one of these days!!!