My car is stumbling under acceleration (aka choking) HELP !

[TalkJDM]

i drive a 1992 CX hatchback with a D16A6 and I'm running it with a P06 ecu and it stumbles under acceleration (aka choking), it won't do it when i get on the road, but like 2 miles down the road it'll start stumbling when I'm cruising but when i floor it, it does not stumble, i replace my fuel filter thinking it was that but that did not correct the problem, right now i am using a PT3 ecu out of an 90-93 accord and it does not stumble. Weird right? I want to keep using my P06 ecu but i think it has a faulty sensor, any kind of help would be wonderful, Thanks Club Civic.

 

[Puma]

What codes are you throwing? Last time you did a tune up? Last time you changed the 02?

I just swapped my o2s last night and this problem went away.

 

[TalkJDM]

i did a tune-up back in Oct. of 2011 but i was having the same problems before i did the tune-up, never changed out the O2 sensor but i am looking into it right now as i write this, thanks for the help, when i change it out, ill keep you posted.