sputtering problem, engine running rough Options

[BlueCeliGT]

So here's the deal...

When she starts up first thing in the morning she runs great. But as the engine warms up it has a rough idle(a bouncing effect) and when i hit the gas it'll sputter then catch but still not at full power. Cleaned the intake filter(aem cold air) changed plug wires and cap(no rotor tho), plugs are a month old and were pulled to have gaps checked. It started after we got a big snowstorm here a few weeks ago so i was thinking possibly a problem in the fuel system but looking for other ideas

Thanks

Eric

[alltracman78]

Hm.
I believe you have a MAP based system.
In which case yes, it's very possible. Especially if there is a small round hole in the side of the box.

Your first step is to confirm you're supposed to have one there [a pic of the hole and surrounding area would help].
Your second step, assuming there is supposed to be one there, is to locate it, and reinstall it.

Also, a GOOD fuel injection flush/cleaning will probably help some.
How do the plugs/cap/rotor look?