E78 issue with different OS

[RiceCop]

This is a sort of weird situation I guess but maybe someone here can help.

I've got a customer with a 2014 Sonic (E78) and I've been working with them for a while on a tune. They MUST have the engine coolant temp lowered to 199*F or so, vs. the stock 220ish. EFILive does not have the table for this unlocked. We have a Cruze here in the shop with the same engine and same ECM. I opened up HPTuners and replicated the tune, along with editing the ECT table they are asking for and flashed it to the Cruze. I read it out with EFILive and sent it over to them, but they get error $0540 because of the different OS.

I tried doing a compare of the stock Cruze tune with the modified one in EFILive hoping to script the changes, but it doesn't pick up the ECT table since it's not defined.

Will doing a full flash just put the Cruze OS on the car? Or will it brick the controller?

[RiceCop]

This can be ignored for now, I'm in contact with Ross about getting the table added.

[ScarabEpic22]

This is an important table for the E78, especially for the Sonic/Cruze...

You could try the Cruze OS, but I imagine you're going to have some things missing feature-wise. Also, there is a chance of bricking the ECM if the OSs aren't compatible.

[GMPX]

I got him sorted by adding in the table.

[RiceCop]

Yeah Ross hooked it up- Thanks so much Ross. I really appreciate it.

[a78turbo]

I would be interested in knowing how to add this table also. I have been looking for it for some time now.

[a78turbo]

Is this a table that is going to be made public? If so, any idea when it may be implemented?

[cindy@efilive]

The request was actioned outside of the framework of the software, there are no immediate plans to enhance E78 parameters in the near future.

Cheers
Cindy

[Taz]

I would be interested in knowing how to add this table also. I have been looking for it for some time now.

Truck OS ?

I have a 2011 E78 from an HD truck on the shelf ... been meaning to have a look at it when time permits

[a78turbo]

Sorry Taz, I'm working with a 2014 Sonic also. OS 12656286. It's nice to know that no future support will be added for E78/T76. Time to get a free hex editor and start searching.