stumbling or missing at low rpm

i hav a 98 z24 w/ 2.4 & it idles fine & usualy runs fine but sometimes at low rpms (like changing from 1st to 2nd ) it stumbles untill about 3500-4000 rpm. anyone have any ideas?

Yes, I am a proud owner of a z also. When I purchased the car about a month and a half ago it was doing this exact thing. I replaced the plugs and the plug boots, and now it runs just fine. I would first check you plugs and go from there.

i changed the plugs, boots, coils, & coil pack cover. it kinda acts like it is getting 2 much fuel( if i push clutch in & rev, it clears out for alittle) i dont know... also if i spray carb cleaner down t.b. it runs fine for aday

Clean your IAC valve. Remove it and clean with carb cleaner and a tooth brush. Then clean then the hole where it mounts. Try not to move the pintle in or out. Reinstall. Be careful on the first test drive as the idle may be high if the pintle was moved. Good Luck.

i took the iac off, the t.b.,& intake manifold off & cleaned/ installed new gaskets... helped 4 2 days now still the same- but thanx 4 the idea

If it helpped at all you are in the right area. You may want to re-clean. Something in there may have broke loose and be plugging it up.