02 sensor downstream wire colors to aftermarket pigtail.

What is your question?

So my car was acting funny it gave the code for the downstream o2 sensor under the driver side. I looked under an the wires were completely unattached from the harness my question is, what color goes to what color on the standard 4 pin pigtail I purchased?

What makes this problem better or worse?

Any driving at all

How long has your 2002 Ford Explorer had this problem?

3 days