I'd be pretty certain it is the iscv,quite common on vauxhalls.
Pop over to migweb as there's loads of good guides on how too clean/repair it.
It's a really good website,a bit like this place but perhaps even a bit more technically minded and you usually get an answer pretty quick or use the search function,saved me a ton of hassle on my vauxhalls over the years.
Bet that flies!!!!