Recent content by Mr. Orange 645

It depends on where you have to work, if you have a lift, oversized tires, etc. I just have coil spacers (I believe 1.75" and 31x10.50 tires. So not much of a lift. But that gives me plenty of room to crawl up underneath in my apartment parking lot and get to all four O2 sensors. Now the plugs...

Ok, you'll have to forgive me because I know NOTHING about exhaust systems. Which cat would likely be throwing the P0431 code if it isn't the O2 sensor? Any I'll effects from just removing that third cat? I'm in Missouri so I don't have to worry about emmission standards tests .

I'm sorry! I meant to put that in my post. It's a 2005 X, so it's the 4.0L.

@Chris I have a CEL with the P0431 code. The previous owner worked in the automotive shop at the dealership, and he said he had the cats checked several times, but they were definitely good. So he just cleared the codes, but it kept coming back. I'm planning on starting with changing out the...