lunging down the highway?!?

[03.5BlueMSP]

hey guys wondering what might cause my car to be lurking down the highway while cruising.

the best way to describe it is that the car feels like its missing every now and then, but its very quick and goes away. its hit or miss if it does it, sometimes it does and some not.

i have a sneaky suspision its the clutch sticking sometimes and hitting and causing it to "lunge". btw, when i say lunge i mean slowing.

imput?

 

[mazdaspeedp]

maybe fuel cut or ur airfilter maybe clogged

 

[littlemimus]

what rpms and what speed? are you referring to the stumbling then it straightens out?

 

[HKPRO5]

I have the same thing going on. Do you have a wideband? It may be that you are going lean.

(i still dont know how to fix it)

 

[03.5BlueMSP]

no wideband here..

and its around 70mph at ~3k rpm