While I was cleaning my air filter earlier in my '02 C4S, I noticed a connector that comes from the same point on the wiring loom as the MAF - close to the right hand side of the air filter box. At the moment it isn't connected to anything.
Any ideas what it is - should it be connected to anything (all seems to be working OK).
Any ideas what it is - should it be connected to anything (all seems to be working OK).