Would this be something dealer corrects with a “flash” or is there “DIY” sort of reset?possible that the adaptive memory doesn't recognize the different resistance of the new O2 sensor.
...and dealer would be able to do this? Thankswell, not necessarily a flash, although every drive-ability school I go to they tell us to flash the PCM to the current programming before proceeding..
It's just a "reset" of the adaptives to make sure the car doesn't learn bad habits.
could be a vacuum leak from engine valve cover. does it make any squking noises?I am having the same problem with my 2017 Malibu hybrid. Did you ever figure out your problem and the fix. Mine has been in the shop for more than 2 months and still not fixed.