Plug near DS FWD 02 Sensor

[Somebodyelse5]

Found this open plug when I was replacing the drivers side forward 02 sensor yesterday, anyone know what it is?

 

[SkiLyft]

I posted pictures of mine when I changed the O2 sensors:

https://forum.ih8mud.com/index.php?threads/Good-O2-Sensor-replacement-guide?.816737/

Check and see if you see the plug in mine.

 

[Somebodyelse5]

Thanks chris, looks like yours is open too. Wonder what it is.

 

[Scottb4857]

Thanks chris, looks like yours is open too. Wonder what it is.

I posted up a pic of the same open plug awhile back and had no answer then. Found it while replacing O2 sensors also. Hope someone will pop up and answer this time. I'm speculating it is something that the Lexus version uses - given the location maybe an extra oil or coolant temp sensor.

 

[CanadianRockyCruiser]

I posted up a pic of the same open plug awhile back and had no answer then. Found it while replacing O2 sensors also. Hope someone will pop up and answer this time. I'm speculating it is something that the Lexus version uses - given the location maybe an extra oil or coolant temp sensor.

I have the same one on my 2001 Lexus... it doesn't use it either...the mystery continues!

 

[Somebodyelse5]

I have the same one on my 2001 Lexus... it doesn't use it either...the mystery continues!

BUMMER! must be where my flux capacitor plugs in....