Help identify this plug

[DonMaximo]

This plug runs along with the O2 sensor on the drivers' side.

Did a ground up restore, now using LT headers, and failed to label this plug upon disassembly.

see attached pics

 

[jrichker]

Looks like the connection for the low oil quantity sender on the driver's side of the oil pan.

 

[Haus]

yep it goes to the oil pan.