Sudden LQ4 problem??

[2014sierraAT]

Wanted to give you guys an update and thanks for the help. I believe I have the problem narrowed down to the Dakota Digital BIM module that is feeding data for my gauges. I could not get around the fact that everything worked perfect while the tuner was hooked up to my truck, (which made the gauges inoperable because he was using the obd port). I pulled the plug on the gauges drove it everything is fine, plugged it back in and went back to shifting crazy and fuel pump cycling. Called them up and apparently he sent the info to the engineers and they had me change one setting and everything is fine for now. He said this setting shouldn’t be enabled for my application but for whatever reason it’s fixed the problem. They said they had never heard of trans issues being caused but the fuel pump cycling randomly wasn’t new news to them.