Hello,
I have a 93 DLX shortbed with a 22re motor. I can not figure out where one of the connectors goes to.It is located on the top of the engine,bundled with the other connectors that go to obvios components.

It is grey in color and has a brown and green wire leads,2 pin connector.I for the life of me cannot find where it goes or if a component is missing to which it plugs into.The truck will not pass the good ole E-check program we have here.It fails the Hydrocarbons portion of the test.Can anyone help???
Thank you in advance