Need wiring diagrams for 2016 6.0L/6L90 & E78 ECM

[knomadd]

Hey guys, I just bought a 6.0L L96 & 6L90E combo out of a 2016 Chevy Express Van. It has the new E78 ECM and I'm having trouble finding any pinouts / wiring diagrams to thin out the factory harness. Does anyone have any idea where to find this info? I've already contacted Brendan with LT1swap.com and he has told me that he doesn't have any info for that computer and doesn't tune them either.

If reworking the harness myself doesn't work out, I'm also researching companies that can provide a complete harness. I've reached out this weekend to Speartech, Howell, PSI and BP Automotive. Just waiting on a reply from any of them. Any other companies you might know that could help would be appreciated.

Lastly, tuning, which is likely to be the most important. So far, I haven't seen anyone who has any knowledge of this ECM, or at least not listed on websites. In attempting to get info for the wire harness, I've also asked about tuning to the 4 companies I listed above.

I'm new to this stuff, so any help you could give me is greatly appreciated.