Catalytic converter changeout

[sniper7]

Swaps right out. Little elbow grease, penetrating oil, and some time will get it done. O2 sensors are usually good, all I would do is scrub them with a fire wire brush to get rid of particulates and carbon build up and they will read better. If you were getting codes try that first, then if you still get codes buy new ones.

[ChunkyMonkey]

If you know its the front or rear one, you can buy just that part. The whole thing is bolt on for less than $250.

[fullmann]

The only thing I'd question is if it's a california emissions vehicle, and it has nothing to do with ever being in California.

That may screw with you, as there will be at least 2 converters and maybe an air/fuel sensor along with an O2 sensor.

The quote for my 4Runner with Cali emissions was extreme, as was my wife's old Cherokee.

Federal law law also says you can't de-californiaize, even if you don't live there.

[sniper7]

The 49 state ones pass around here.

[2XS]

It looks like a bolt in affair buy some kroil squirt the bolts and nuts wait a couple days and swap it. http://www.rockauto.com/

[fullmann]

The 49 state ones pass around here.

Yes, but if it's a Cali emissions vehicle, the computer needs to see all the cali emissions crap.

[MarkCO]

Sometimes I forget you guys on the front range live behind enemy lines. Ain't no one gonna inspect anything out here on the frontier.

Yeah. I had one fail, running lean on alcohol that passed all the emissions, but the serial numbers on the cats did not match the VIN. If I had not chatted up the fellow gear head working the special test bay, when I went back I would have had to have a receipt from a dealer or certified mechanic to get my equipment passed. I made it, but not without some effort and some help including borrowing a set of Cats.