What the heck is this plug for

[aft3rsh0ck]

The one im speaking of is the green wire into it. its driving me nuts and cant find anything online. Ill have to confirm but I believe it has only 3 prongs on it, not 4

Ignore the blue circle.

Thanks yall

 

[81Regal]

That looks to be the wiring and plug for the converter lockup on the transmission.

 

[aft3rsh0ck]

Okay. I have a Th350. Guess its not needed?

 

[81Regal]

Not unless you have a lockup Th350