I have a 96 civic with a ls/vtec swap. My car starts and runs fine until it gets warmed up. Once warmed up, when I come to a stop, sometimes the veh dies and sometimes the rpm just drops a little then goes back to normal idle.

The car starts right up everytime after it dies and runs fine until I come towards a stop.

Am I not getting enough fuel or air when I am slowing down near or at a stop and how do I check for a possible vacuum leak?

Any info is appreciated.

 

easy way to check for vacuum leaks is to let the engine idle, then take a can of brake cleaner and spray over all of the vacuum lines, if the car dies, you have a vacuum leak in that area

 

the spark plugs might be popping out of place, or fuel injectors could be dirty/shot.