ICV issue

[Niall]

The ICV does a self test every time you switch on the ignition.

ECU "reset" is not required.

Your ICV is dead, the wrong type? (they're all the same though ) or you've got an air leak.

This. A ECU reset is not required!

Its always worth unscrewing the plunger from the ICV and giving it all a bloody good clean up with some brake cleaner. Sometimes it can bring them back to life but 9/10, it will only last for a few weeks or months then go back to its old ways.