Hi,
Idle after a cold start, 1100rpm.
Idle after a 10 minute warm up, 900rpm.
Idle after a 30 minute drive, 1100rpm.
Car is an auto, in 'D' idle is 800rpm.
I let the car warm up for over 10 mins before driving and the problem didn't occur.
Would still like to know what that component is...
cheers,
JohnH