View Full Version : Custom OS questions from a new tuner
mtnman
September 19th, 2005, 04:48 AM
Ok, I've seen a lot on the posts in relation to Custom OS -es. I've got a few questions that I havent seen answered in the posts.
Can the Custom OS be flashed on a PCM with the Flashcan-P package (or does it require a commercial upgrade)?
What benefits does flashing a custom OS onto the PCM provide as opposed to the stock OS?
Is the Custom OS beneficial to somebody with a fairly stock vehicle (no tubos, supercharges..etc)?
SS2win
September 19th, 2005, 07:13 AM
you need the commercial upgrade.
you can run MAF less tune and retain the high/low spark tables, there is a table added for 2/3bar boost applications, a valet/2step mode is available ...
If you want to run SD or boost then it is a great benefit.
BowlingSS
September 19th, 2005, 07:38 AM
OS V3 works great.
Bill
87gmc
September 19th, 2005, 07:52 AM
Better MPG :lol:
BowlingSS
September 19th, 2005, 07:55 AM
I am getting a little better gas mileage but I am still tuning.
Bill
:D
Blacky
September 19th, 2005, 10:02 AM
Can the Custom OS be flashed on a PCM with the Flashcan-P package (or does it require a commercial upgrade)?
Reflashing the PCM with a Custom OS upgrade requires either Commercial or Workshop. However,once the upgrade is flashed into the PCM, you can edit/tune it (including the custom calibrations) with the Personal version.
Oo if you know anyone with a Workshop version of EFILive that is willing to reflash your PCM for you (only takes 2 minutes) then you don't need to upgrade to the Commercial version.
Regards
Paul
lplott
September 20th, 2005, 01:00 AM
Better gas mileage always sounds good considering $3.09 a gallon... :lol:
How lean are you guys running your cruise rpms? 14.6-15.2?
Lonnie
Powered by vBulletin® Version 4.2.5 Copyright © 2024 vBulletin Solutions Inc. All rights reserved.