So yesterday I was fed up with the issues and decided at 7 am when I got out of work I was going to do my best to find the issue myself so I didn't have to wait on the dealer and whatnot.

I have figured it out!

1.5 hours outside in 28-degree weather and I got it.

Turned out to be the big connector in the picture here, tested it out 5 times over just to make sure, and every time I'd wiggle it or twist it the truck would start misfiring.

So for the time being I zip tied the connector to help it make a better connection and I haven't had a single issue so far.

Would like to replace the harness myself this spring when it's nicer out.

Found a new GM harness for $750.

I hope this thread will help someone out in the future and I will be sure to update if anything else arises.

I would also like to add I don't know what I would do without this edge CTS2, really helps out.

Would like to upgrade to the CT3.

Highly recommend to anyone!

Click image for larger version.  Name: PXL_20201027_124547646.jpg  Views: 2  Size: 168.4 KB  ID: 742

Click image for larger version.  Name: PXL_20201027_124552499.jpg  Views: 2  Size: 113.2 KB  ID: 743



Sent from my Pixel 2 XL using Tapatalk