Well i decided even though I had the car jacked up there was no easy way for me to access the two nuts to remove the sensor, it seems for everything on the twos you need ET fingers to get at everything.
So i have completely unbolted the mid section of the exhaust, but it seems there is not enough room to slide it off the hanger as it fouls the sub frame and/or rear silencer.
(should this just slide off or not???)So I am struggling to get in at it, am I right in assuming if original size should the nuts be 12mm? cant see a damn thing because of the heatshield around the sensor.
Arrr its too cold outside so will persevere tomorrow when the sun is shining
lol.