Flores2020

Now that you say road imperfections, the roads ive been driving on have been ****** and the times these problems occured were during stop and go, stop and go driving in cities

Was there ever a remedy found for this? My 2020 Trailboss LT just started doing this at 72k miles. At first i thought it was the battery due to this issue and low horn chirp, so i changed battery. Then i was cruising fine at 75 and the service esc, parking brake, and CEL flashing happened. I went to an oreillys to read codes due to dealership being closed. It came out at P0300. Truck was running fine: no rough idle, temps and pressures good. I disconnect and reconnected battery to try and reboot the computer. It took off my CEL and truck ran fine as ever. 2 weeks later same thing happened. My dealer says no engine light, no diagnostic. I then thought of maybe foul spark plugs, dirty injectors, etc. If dealer cant help im thinking of taking it to a performance shop to flash computer and deactivte dfm/afm and have v8 full time.