Hey,
My '96 GLE has started doing this odd power hesitation and surge during low to moderate accelleration. I keep the peddal in the same place but the car acts like I'm releasing and pressing back and forth. It does this 3 or 4 times say from a stop to 45 mph..and is not noticable during quick accelleration with more peddle pressure. Plugs are due for a change but no other symptoms...
Sort of feels like the intake damper isn't being properly dampened...?

Any ideas?

 

I had the same symptoms too and finally this happened:

http://forums.maxima.org/showthread.php?t=333482

 

way to many threads like this...about hesitation...everyone points to maf, throttle body, injectors, coils, our buddy the knock sensor, tps, plugs, and a number of other things...this is crazy, it seems like everyone is getting a hesitation then power from there cars...everyone seems to fix it with a different solution....good luck!!!