Experienced misfiring issue with my 2020 GMC Sierra 5.3L Elevation. Got a Deep scan and had multiple misfiring issues all at once and roughly four cylinders having the most issues. Searched like a madman on the issue. Heart sunk!

It was either get a $6k-8k AFM delete. Not an option financially for me.

Through YouTube I tried out a chip that would force the engine to stay in 8 cylinder at all times. As soon as I installed a choice brand of Range Technology Plug & Play AFM/DFM Active Fuel Management Disabler for GM Vehicles RA003G (Green).

Problem solve in my case. So far 25,000 miles later still no issue. Hope this helps!!!!