Hi guys. Every now and then when i'm cruising i get a bleep, eml light comes on and the car goes into limp mode. The car has done it about 3 times now over the course of a month and it doesn't matter at what speed i'm cruising. The car does a foam induction kit fitted. I plugged it into out Bosch KTS computer and this is the code that it came up with.

D3 - Idle Speed Actuator
Component Stuck Closed

Now when i have the engine running and check the actuators the computer is saying the actuators are working (changing percentages when revved).

I was just wondering if anyone has come across this which would be an easy fix, Or do I need to investigate this further?

Many Thanks