MATS Sensor Removal

[joeposter649]

I have a stupid question that I can't seem to find the answer for. How do I remove the MATS sensor? The shop manual just says to "disconnect the MATS connector". Is there something I have to press on the connector or do I just pull it off?
Also, I put a wrench on the sensor to try to remove it and it didn't seem to budge. Does it require quite a bit of force?

A little background:
My 2012 rxp-x 260 is throwing a p0127 and going into limp mode. Apparently that's that's a bad reading from the MATS sensor so I want to remove it and check the resistance.
Or, I have another 2012 rxp-x 260 I could swap it with to see if it's an issue with the actual sensor.

 

[gazzaskirepair]

on the connector is a little metal wire lock, make sure you a pressing that when pulling off the connector

the sensor may be corroded into the fitting that's bonded into the plastic manifold
if you can do resistance check with sensor installed is best and if you have another sensor you could plug it into the connector without installing sensor to see if fault clears

I had a 2010 boat repair last month that had a cut wire on the MAT SENSOR wiring near the sensor