Nerdcore314

Hey guys! Signed up for this forum about 10 days ago, just now managed to get it to work for me for some reason, login seems to be buggy.

Anyways. I recently blew the engine on my 88' CRX which was suppose to be my dream car but being the 9th owner... The car was too far gone. I dropped over $4000 in the first year I owned it trying to restore it then realized it just wasn't going to happen so that brings me to buying the newest car i've ever owned:

My 2005 Scion xA
Release series 2.0
#283/1700

The car has been really nice so far. Plus I'm big into hypermiling (which is why I liked the CRX so much) and my first 3 fill-ups have been 32, 35, and 32mpg! dang! That's just as good as my Rex!

Anyways my first ever question:
About 5 times in the last 1000 miles out of nowhere the car will kindof sputter while going down the road. Only for about 1 second it will quickly just feel like I let of the gas then get back on, kinda like a jumpy feeling.
So far i've noticed it do it in 4th at about 2000rpm and in 5th about 2000rpm so the gears make no difference
Any clues on what would make it do this so rarely and out of nowhere?