1997 honda civic ex -gas mileage

my gas mileage has dropped 40% in the last 2 weeks. When i drive the
car and press the gas sometimes it doesnt respond, it acts as though
the gas has finished and then suddenly revs up.

any ideas what i need?

oxygen sensor, fuel filter causing the mileage to drop so much?

thanks

PS I changed the plugs, wires

thanks

i tried looking but could not locate the pcv valve. i see a tube runing
from air filter housing to engine block but when i open the 2 clips
closer to the air cleaner i see no pcv valve simply a rubber connector
tube

could it be missing a pcv valve altogether or maybe im looking wrong
place?/

thx
Elle wrote:
> Check everything at
> http://home.earthlink.net/~honda.lioness/id11.html
>
>
>
> "naz" wrote
> > my gas mileage has dropped 40% in the last 2 weeks. When i
> > drive the
> > car and press the gas sometimes it doesnt respond, it acts
> > as though
> > the gas has finished and then suddenly revs up.
> >
> > any ideas what i need?
> >
> > oxygen sensor, fuel filter causing the mileage to drop so
> > much?
> >
> > thanks
> >
> > PS I changed the plugs, wires
> >