While doing some maintenence under the hood of my '91 190e 2.3 I noticed the wires were completely out of the EHA valve! (the check engine light had come on earlier last week). So, I have no idea which wire goes where.

There's two wires, one black and one brown with a black stripe. The connector has the numbers 1 and 2 on it. Can anyone tell me which wire goes where?