Can anyone tell me where this sensor is located in my vRS engine bay?   I've done a search, and the only post that discusses it in depth contains a few red herrings and a link to an article on a mod, but the pics don't show up anymore.   I've seen reference to it being of steel rather than plastic, and there is a circular device attached to the bulkhead, but don't know whether that's it. I've also seen reference to it being off the tandem pump - is that the pump attached to the right hand si