Disconnecting O2 Sensor harness - need help

[tjambone]

Longtime lurker, first time poster.

So I'm trying to replace the o2 sensor in my 01 qx4 (Bank 1, Sensor 2), but i'm struggling to get it unplugged from the wiring harness. I feel dumb, what is the secret? I see a green tab that i can push forward, but i still can get it undone. I don't see any other tabs to press. Any help would be appreciated. Thanks.

[ARKQX33V6]

Can you remove the sensor with its wires up to where it gets plugged into the circuit.

[tjambone]

problem solved, just had to push the green tab ALL the way in. now i'm getting catalytic converter error codes, but that is another issue.

[GRNMACHINE]

Was wondering same, working on this tonite.

[asnorton44]

Yeah I am getting ready to replace bank 2 sensor 2 Ill see how it goes.