My 2019 Titan has never had an issue since new, now at 101,000 it started with a slow acceleration, kind of like it's missing, jumping spark, but it doesn't do it every time I stop and take off, only does this 30% of the time. I brought it to the Dealership, they kept it for half a day and said it would not do it with them, no charge. I changed the Mass Air Flow sensor, new spark plugs, new air filter, new belt, several different fuel system treatments in the tank, different brands of fuel, ran a few tanks of premium fuel, nothing is helping. Anyone have this happen to them? Thanks for the help in advance! I love my Titan, my 3rd one, never had an issue with any one of them until now.