Hi all!
Have a 2015 GMC Sierra L83 6l80. Have headers and full DOD delete. Went to a tuner originally to get my truck tuned for the long tube headers which are 1 3/4", and for a while I've been getting p2097&99 codes saying the truck is running rich on both banks. It does smell out of the exhaust. I now have HP tuners as i did some trans tuning, but am lost when it comes to these codes. I will attach two logs, run 4 is normal driving, run 5 is WOT a few seconds into the log. Will also include my tune file to see what I need to do to fix the fuel trims. Thanks guys!run 4.hplrun 5.hpl2015 GMC Sierra Beta.hpt