I can rev my rpms up to about 2500 before it starts sputtering and wants to quit, and will if i let off the gas

nice double post , why do that?
ah now with name.
sure.

shows no code.
well if you drive it and scan it , and flog it up hills
id bet it does P0300s...
id bet.
scanning parked is a near useless, way, unless super lucky.

try new spark plugs... or get a full real tuneup
do so at least once a decade. (LOL)

have vechicle code scan could have faulty idle air control valve.

Possible fuel pump about to die. They will work if revs kept up

CLOGGED FUEL FILTER OR CLOGGED FUEL INJECTORS.WILL CAUSE SPUTTERING AND MISFIRE.LEAKING EGR VALVE WILL CAUSE ROUGH IDLING SPUTTERING.

the very first thing you should do is have your fuel pressure checked. sounds like fuel filter or fuel pump.

mass air flow sensor its in the air intake pipe

C-4, C-4, C-4

try putting some prestone into your tank.

dirty or clogged injectors or fule filter i just had the same problem

Is there any white smoke coming out the exhaust? Sounds like the same problem my friend had when he warped his head on his 91 civic. Any overheating at all? Otherwise another guess would be maybe a bad catalitic converter that clogged up. Hope this helps any, good luck