My 05 is acting very wierd its like it bogs down when i press the gas pedal. ill be in third and at 3k and punch it and the rpms go down to about 2 and then it jumps up to 3 and starts movin. to try and explain it feel like driving an AT and punching the gas and the car downshifts itself. its that delay but i get that in gear with a MT. idk what to do but ima go to infiniti and get it checked out . do you know if a z-tube would void your warrenty?

 

i dont even think they will notice the z tube.
maybe its the drive by wire acting up

 

Could it be the spark plugs. just hit 65k miles and i want to change them>

 

Im not a mechanic, but I didnt think spark plugs need changing until the 100k mark

 

i thought required maintainance was at 60k

 

I thinks its 100k. Issue sounds like maybe maf or its missing of some sort. Im sure someone will chime in thats had the issue

 

Also were you low on gas? I also had honda that the fuel filter was getting clogged and wasnt getting enough fuel ar mayb even fuel pump going out

 

More likely you need a tune up