Recently i got a cel, checked it and it was code 65 which means my secondary o2 sensor (the one in the back of the cat) went bad. got a new one and now im trying to put it in except i ran into a little problem.
The socket i have to remove the sensor is too tall, and the heatshield gets in the way. I tried to remove the heatshield but 1 of the bolts is next to impossible to get too. Should i just unbolt the cat from the header or exhaust pipe to make more room? or is there a better way? I remember when installing the header and catback the bolts were a huge pain.
Any tips from those who have done this before?