Strange intermittent hunting upon startup when hot

[DarranJones]

I had my intake gaskets replaced about 6 months ago cos my car started idling when it got hot, and its been fine since then. More recently though ive had another hunting issue.

I can start up the car, go for a drive, and everythings fine and dandy. If I then park up somewhere and turn the engine off for a fairly short period of time i.e. 5, 10, 15 minutes, and then start up the car again it doesnt always idle properly. It\'ll hunt for a little while i.e. 15-20 seconds. This only happen intermittently though.

I have a full decat and an apexi ecu.

Anyone have any thoughts?

Darran