First off, congratulations on being the proud new 'X owner!
Regarding your concern, I've seen discussions on this before. You may want to try a 'search' and see what comes back. But, I can tell you that I experianced the same thing I think you're describing. I especially noticed it right after I got my 'X. I attribute it to the climate control that alternates between heat & air conditioning when needed. I'm not speaking for everyone but, that is what I found.
Okay... I knew this would happen. I sold my last vehicle because I was tired of it not running right. Well this new MDX of mine surges every 1 second on takeoff that I feel mostly in second gear. I really feel it when its cold. I now know it is termed "surging" from looking at this thread as I had initally termed it "fluctuating" .
Has anyone ever gotten this surging every 1 second business fixed or had experience with it? Although I only have 300 miles on mine, I am thinking of selling it allready if I can't find anyone on here that has had it fixed. I had assumed it would go away possibly because the engine needed to break in but from reading other posts here.. It's a known issue...
My frequent surging issues went away at 400 miles right after I carried a load of 7 people in city driving for around 40 miles! When I stepped out of my MDX, I did smell that new car burning smell so maybe something (possibly emmisson wise?) finally got worked in.
I continue to have the same "morning" surging just as I was experiencing all the time but it does not bother me near as much.
Now if I can just settle rattles and squeeks in the back, a low pitched rumble at 50-65 and the morning surging, I'll be prefectly happy!