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The oxygen sensor on a 1999 Honda Civic is located on top of the catalytic converter. The catalytic converter is under the car.
How much does it cost to replace the catalytic converter on a 1999 Toyota Tacoma
Your check engine light will come on and you will fail emissions.
Yes.
The catalytic converter bolts to the exhaust manifold on the rear of the engine on a 1999 Chrysler Town and Country.
Yes.Yes.
Replace it
Crawl under the vehicle and look between the engine and the tail pipe. You will see the catalytic converter.
A shop can cut the bad converter out and weld a new one in.
You cannot unclog a converter. If it is clogged it much be replaced.
Crawl under the car. Look for the exhaust pipe coming from the engine. The first object it flows into is the Catalytic Converter.