Duramax LBZ/LMM DSP5 User Guide
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www.efilive.com
DSP Upgrade
What is EFILive DSP
5
?
EFILive DSP
5
(Duramax Switchable Performance) ECM (Engine Control Module)
operating systems are modified versions of the factory ECM operating systems
that give users the ability to use the factory ECM to perform functions beyond what
was offered from the factory.
EFILive DSP
5
custom operating systems for Duramax controllers allows customers
to be able to switch 'on the fly' between multiple tunes, all stored in the ECM's
flash memory.
LBZ / LMM DSP
5
can only available to be switched via a hardwired switch. Users
cannot switch tunes using FlashScan V2 or AutoCal like the LB7 / LLY DSP
5
programs can.
The ECM can be returned to GM factory condition at any time by reflashing a
stock GM Operating System and calibration into the ECM using the Full Flash
option.
On the LMM ECM the CVN changes to the ECM's Operating System will be
logged by the ECM and be will visible by the TechII diagnostic tool.
Upgrade the Operating System to DSP
5
Important:
FlashScan V2 / AutoCal MUST be plugged in to the PC's USB port
prior to starting V7.5 for the DSP
5
operating system upgrade to be available.
Using the EFILive V7.5 Tuning Tool, open your tune file and click on the 'Upgrade
OS' tab.
Select which operating system upgrade you wish to apply (only choose one), then
click the “Apply Upgrade” button.
