The white piece in that connector should come out as it isn't supposed to stay in there, it is part of the O2 side of the connection. Looks like it came apart and stuck in the harness side. That is why it looks different. The attached is what the O2 side of the connector looks like, notice the white plastic, the piece in your connector is that white piece, it broke off and stuck in the wrong side.
Image (Click to make bigger)
Thursday, March 14th, 2024 AT 2:49 AM