2016 Chevy Colorado LFX REP Message

[Blown383]

Hey everyone. Dyno tuned a 2016 Colorado with the 3.6L LFX and after I was done and pulled it off the dyno, I had the customer take his test drive. He came back and the truck was displaying "Reduced Engine Power" in the message center. I pulled codes but there are none and the CEL was off. I tried 2 other code readers and my newly updated Snap-Off Verus Edge and still no codes. Has anyone had this problem? This is my first E92 ECU. I tried all the usual things like maxing out the airflow limit and delta tables, MAP/Baro correlation, etc but still the issue persists. Truck runs and drives fine. Promised the customer if look into it. Hate to have something like that happen. I'd be annoyed if I were him. Truck hit 292whp though on 86 octane. Runs fantastic.

[RAL]

I’ve ran into the same issue on a few GM’s myself. The BCM cable connector needs to be cleaned up real good and greased (dielectric grease) there are many recalls regarding this if u want to look it up. Good luck hope this helps!

[Nickvrebel]

I can't help. I just bought my 2018 and haven't had the time to really look at the stock tune, much less run logs and make any changes.

Truck hit 292whp though on 86 octane. Runs fantastic.

Holy cow. Safe to assume a supercharger was installed?