O2's are square and have four pins. Signal, ground/ref, heater +/-.
Right. Good Man.
Originally Posted by FordMan77
That looks to be the connector for the Magnasteer (variable assist steering). If you take a look at the harness that runs over the top of your trans (near where the shifter cable attaches) you should find the other end.
Shouldn't be any idiot lights if the Magnasteer's unplugged. I vote winner.