MAN ----ill bet you.ll never ask a question like that here again---ha ha ha
its CALLED MOISTURE......i beleive nissan recalled some harnesses for this prob.................take your plug wires off and spray them with wd40'''
take your plugs out if you can and clean them up too....
has it rained hard in the last couple of MONTHS????
happens to alot of people ....check the area were the plugs go to the cap ---some time the cap gets a hair line crack from over tightening ,,,,,it gets hot on the inside and draws moisture .....its alot worse when it has rained
sounds like your getting a arc....check the inner cap diode..too
ALSO PUT three containers of heat ...its a moisture remover from fuel....maybe thats a prob

NEVER GET GAS AT A GAS STATION THAT IS GETTING FUEL THEM SELVES _____IF YOU SEE A GAS SEMI AT A GAS STATION ___DO NOT GET FUEL FOR AWHILE ....the semi kicks up mad setiment in the underground holders...
you also will get a higher concentration of inner water .....which really makes you think you have huge PROBS but its just WATER=====
I HOPE THIS HELPS -------happy to help
sensistar Reviewed by sensistar on . car experts, help me out...my car is shaking i drive a 2000 nissan maxima SE automatic. lately when between 600 (idle) and 1200 rpm my car starts shaking/chugging/hesitating...whether in gear or in neutral. when it gets above about 2200 rpm the chugging goes away. the chugging is at its worst when i'm in 4th gear travelling around 37-40 mph and at 1300 rpm or so. when i turn on the a/c it gets worse...the chugging gets stronger and slower. when i turn off the a/c it gets weaker but chugs more rapidly. my car has lost a lot of power Rating: 5