O2 sensor connector location?

[kristopfowler]

I just purchased an '88 Toyota with a 22R-E and the truck has a check engine light. Looking around I saw the O2 sensor was not plugged in, but I can't seem to find the connector for it and I've looked everywhere. Please let me know if you have any info. I know the wire from the actual sensor is no more than a foot long. TIA.

 

[toyoboy]

the wire harness should be running along the drive side of the transmission down to the crossmember the holds the tranny...but these connectors just don't come unplug...usually it gets caught into something and brakes the wire..