Hey all. Driving home from a roadtrip to North Carolina this weekend, the check engine light on my TJ popped on. Ran the diagnostic and got code 72, which when translated says, "Catalyst efficiency below required level". Is this an O2 sensor problem or something else?
From the amount of rattling underneath, I'm pretty sure the cat is shot and was planning on replacing it anyway, but it's still a little cold to be laying out in the driveway. Anyone got any tips for replacing the cat? Will I have to remove that skid plate that covers the
transfer case and everything or can I get away with working around it? I can probably figure it out if I get a chance to look at it, but thought I'd see what y'all had to say first.[addsig]