The Duramax LML comes close to the top of the list for customers asking for support as EFILive has historically been 'the' tuner to run for Duramax owners. Since hitting the Dealers' lots in 2011, we've held many discussions with many people on the pros and cons of supporting this platform whilst keeping a close eye on the struggles the European tuning market has gone through with their own versions of the EDC17.
The issue has been, and continues to be, that EFILive traditionally requires customers to read their ECM via the OBDII port to generate the file to be edited and then re-flashed. The OBDII read restriction in place from the factory effectively prevents this first critical step and simply cannot be bypassed, serious LML development never commenced based on this issue alone.
As we discussed in our January newsletter, EFILive plans on expanding our structure for adding additional controllers where customers create their own tunes with external software and simply use EFILive as a convenient way to deliver tunes to customers, much like the read/write functions that already exists in our software for the GM V6 Bosch ECM's (E55, E69 & E77) even though EFILive offers no mapping for these ECM's.
The Duramax LML will be the next ECM to be supported in this fashion as EFILive has been busy adding LML flashing functionality. With advancements in third party tools, our historical stance has changed. Given the OBDII read restrictions, customers will be required to physically open their LML ECM, solder a wire to the PCB and read out their stock file using external hardware/software, then create and edit their own maps using third party map editing software.
EFILive will simply provide the OBDII flashing mechanism through our V8 software and FlashScan V2 and AutoCal hardware, giving tuners a familiar and consistent way to deliver tunes to their customers. Most importantly the V8 software will also implement checksum corrections to the LML files so they can be externally edited via other software and fixed ready for programming. Enhanced scantool data is already available for the LML.
Given the cost and complexity that needs to be invested to obtain and edit the LML file, this solution is clearly designed to provide those professional tuners who already support, or plan to support the LML via ECM exchange program rather than an individual looking to tune their own vehicle.
Our first release will not include any mapping, and EFILive will not offer any map finding services, however we 'may' consider offering basic mapping support for the LML in the future.
There are already several vehicles running custom tunes programmed with EFILive LML Flashing support. Further beta testing will commence shortly across a wider range of vehicles and public release will follow in the very near future.