[s-cars] Help with connector

[S4audinut at aol.com]

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Can someone look inside the engine bay and tell me something?
There is a sensor connection that comes thru the rubber boot in the pass.
side firewall and has a grey case (I am only seeing half of it), inside it
has an orange plastic guide and 8 pins. Mine is disconnected, what does this
connect to and where does the other side terminate? i.e. what sensor comes
into it and where would the other half of the connector run from? I am hoping
this is at the root of my continuing idle problems.
TIA
Rod