brucelee

iTrader: (3)

For the last few weeks my 99 Z28 W/6mt has been feeling a little sluggish. The car drives normal, not a noticable hesitation or anything but the power is not there. The car is stock except for a lid and exhaust. Im thinking maybe clogged cats, or fuel pressure. Where should I start?

Thanks,

SS101

iTrader: (2)

the first two things that come to mind are your fuel filter and o2 sensors. replace before anything if it were me, i'd do the plugs and wires while i was at it. if that doesnt do it then you may have stuffed cats, but i'm leaning pretty heavily on the filter and sensors.

95 Z28

iTrader: (21)

Maybe, and mayyybe. Things that immediately jump out at me as possible problems are:
fuel filter
plugs

Has the car gotten a tuneup recently?

brucelee

iTrader: (3)

plugs and wires should only have about 20k on them. Also I have no check engine lights on. fuel filter has been done but I might have gotten some bad gas. I filled up at wawa a few times before someone warned me of them having shitty gas.

King Nothing

iTrader: (9)

i'll say fuel filter, i had the same problem

SS101

iTrader: (2)

don't over look you o2s!!! they're really simple to replace and they can seriously slow your ride down - or worse...

matt3383

iTrader: (3)

Yeah fuel filter, also make sure you didnt suck up something into the airfilter housing.

DVS99TRANS

iTrader: (7)

I would have to agree with what you've been told about Wawa gas, there are so many additives in it that it is **** gas. I was commuting from Wilmington, DE to Atlantic City for 5 months and was initially using Wawa gas because it's cheaper than almost anywhere, but saw a difference of up to an 1/8 a tank or more difference per tank everytime I filled up with a better company. That could be the problem but if it's that noticable, i would check your plug's gap. If it was an o2, I'd figure a light would be on.

DMONEY06

iTrader: (2)

i think im having the same problem!