6l80e running 6l90e O/S?

Ok i hope this all makes sense...

I have a LSA converted Colorado, running 6l80e e67 pcm. Has been setup and Running 2013 Camaro OS in PCM and TCM OS has been flashed as a 6l90..

I have seen some sedans that are 6l80 based on flashed as 6l90 os (as an upgrade apparently), but drive not very well.

This car has numerous issues im trying to sort out, main one is fuel economy and I think trans tuning is playing a big part of this.

Now I have tried flashing a 6l80 OS in this vehicle but has engine light tcm /pcm comes fault.

I guess my question is, anyone have a or know of a 6l80 os that may work in this situation?? (I tried one from a VF SS)

Can get more info if needed. Just not at hand atm...

TIA

Ok, so have more info if it helps:-

TCM isT43 O/S 24264923

ECM is E67 O/S 12653669 (ZL1 Camaro 2013)

I tried loading TCM O/S 24267577 (2014 VF SS 6L80e) But no good..

Is all in a MY19 Holden Colorado (LSA Motor Swapped)

From an old post on the "other tuning software" forum, those 2 TCM OS' aren't shown as being compatible. Look in the repository for a 2013 or 2014 Camaro SS, at least one should have the same 923 OS number but as a 6L80 cal.

Quote:

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Originally Posted by Scott CAPA

Ok, so have more info if it helps:-

TCM isT43 O/S 24264923

ECM is E67 O/S 12653669 (ZL1 Camaro 2013)

I tried loading TCM O/S 24267577 (2014 VF SS 6L80e) But no good..

Is all in a MY19 Holden Colorado (LSA Motor Swapped)

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Scott, did you end up shedding any light on this issue?
And did you by any chance have a U0101 code for loss of communication with the TCM?