I've taken on a mini cooper S as a project. I've done the timing chain, cylinder head gasket etc, but when putting it back together I'm finding the previous owner/mechanic has neglected to use a lot on the bolts fastners that should be there. Also I found a white two wire tubular connector that just has two wires twisted together, and I don't know where it goes or what it connects to. the connector sits along side a similar blue tubular connector that goes to the front nearside brake. Anyone know what/where it goes . Thanks.

White connector clipped in place next to blue connector