ok here is the run down...
i have a 96 civic ek, i did an engine swap and put in a b16a4 with the corresponding ecu.

now my problem is that when the car is cold it will idle at about 1200rpm, as i drive along as i start slowing down to stop when i put the clutch it the idle goes up to 2000rpm or higher then once the car is completely stoped it will slowly drop to around 1500rpm. it will keep doing this even after the car has warmed up.

i hav found that once the car has warmed right up if i turn the car off then back on it will run fine.

can anyone plz help me figure out what the cause of this problem is

things that have been checked:
*throttle body
*vaccume leaks
*iacv
*ecu

if u can help me fix this problem i will forever be ur servent

HELP ME ITS DRIVIN ME CRAZY!!

 

Ahhh the classic hand swap problem. I think almost everyone who has ever done a swap gets this problem.

Bleed your cooling system, probably two more times. That should fix it assuming you don't have a vacuum leak.

 

i bled the cooling system and still not fixd any other ideas??

 

Bleed it again, or you have a vacuum leak. If you are using a skunk2 manifold it very well could be the skunk2 manifold. Make sure your gaskets are good. Other wise get a plane block and make sure the manifold is straight.