Stalling!!!

i have a 93 Vtec prelude with 142,000 miles. it stalls everytime i push in the clutch and come to a stop! when i push in the clutch the rpms go straight to zero(sometimes the car tries to stay running). its been doing this for a while on and off. it'll be fine for about a month but then it'll start stalling again. i live in florida where its really hot. it seems that my car stalls because of the hot weather. but SOMETIMES its fine when its hot out! when its cold its fine especially at night. my car's not overheating or anything. i don't get it, its so frustrating!! it does the same EXACT thing Eleanor does in Gone in 60 seconds, where the car is dying and its starts shaking making a funny idle then dies. what could it be!!! has anyone experienced this before. i hope this makes sense to all the readers cause i explained it the best as can.

anybody know?

could be any number of things I imagine. what rpm does your car usually idle at? are you sure its idle rpm is set correctly? does your car throw any codes?, only warm stalling with clutch in? or both when you first start up for the day as well (even if it's a hot day), does it cut or lull anywhere else in the powerband?

On cold days the air is denser (ie: all the little oxygen particles are closer/huddling together), so it's easier for your car to inhale so to speak, therefore it has in abundance of the air to mix with the fuel - in a stoiciometrically correct ratio that if i remember correctly is 14:1 (that's fourteen parts of air to 1 part of fuel) or somewhere threreabouts. (although i think honda's might get richer than that as rpm is increased to protect the engine? anyways...). On hotter days, the air is much less dense (way less oxygen particles grouped together cuz it's hot so they need their space yo) if even your filter isn't clean (is it?) it becomes much harder for your car to well - inhale, in order to keep the stoicometrically correct ratio. I'm not saying it's your filter or anything that simple - but i imagine it's something that's interfering with maintaining that ratio. Or your rpm is set to low to maintain idle - atleast on the hot days - simply increasing your rpm to fix the problem (if it is something else) would obviously be bad - and often accelerate the wear on what it is that is really causing the problem.

In any case this is just the helms manual breakdown of what might be the culprit - but then again perhaps your idle is just set to low, your filter is dirtier than paris hilton, your timing is off or god knows what else.


Cold Stalling
------------
1) Idle Air Control Valve
2) Other Idle Controls
3) Other Fuel Supply (ie bad fuel)/Engine Coolant Temp sensor

Warm Stalling
-------------
1) Other fuel supply (ie bad fuel)
2) Exhaust Gas Recirculation
3) Idle Air Control Valve

I hope this helps.... maybe someone else who has experienced this exact problem can help ya better.

all the best.

thank you ludeguy!!! that helped out a lot! yes my filter is a bit dirty but i know its not that. awhile back i took my car to a honda dealership to get it fixed cause vtec stopped working (damn...i make it sound like i beat the shit out of my car....i dont) anyways, they fucked with my timing and its a little off. my car's idle is set at a little bit below the 800 mark. it never used to stall until after i picked it up from honda!! thanks again ludeguy. now i have some ideas to what it might be!