Replacing catalytic converter on a 2002 Honda Odyssey

Hello Hazem Hammad,

Check out the exhaust system...

You might have a catalytic converter or muffler
blocking the OUT-FLOW.

Unless you are into DIRTY jobs... and LIQUID WRENCH...
Consider your local friendly muffler shop...

JUST MAKE SURE you know your
PRICES BEFORE going in...

A wee bit of dirt can save A BUNCH of money
(if you don't drop the car on yourself).

Choose wisely... be safe!!

1999 HONDA ODYSSEY 3 5L V6 Catalytic Converter RockAuto

Usually 1 in each exhaust manifold and 1 behind each catalytic converter. A special socket is needed to remove them/install them without damaging them.

You can incur major engine damage if you don't get your catalytic replaced first. Afterward you can troubleshoot your transmission problem if you still have it.

Have they tried the catalytic converter? The sensors may be working properly and telling the computer the converter is not doing it's job properly.

P0137 - Oxygen (o2) sensor circuit low voltage (Bank 1 sensor 2)
If you have more than one (1) sensor on Bank 1 then it will be the rear sensor. Change the o2 sensor. You may also want to check the following:

Repair exhaust leak near the rear sensor (if leak is found)

Check for restriction in catalyst and replace as necessary

Repair short, open, or high resistance on o2 signal circuit

Most likely you will just need to replace the sensor. Hope this helps you.

O2 Bank 1 sensor is before the catalytic converter, is located just behind where the exhaust pipes from the front bank of cylinders and rear bank of cylinders join up.


The other sensor goes into the side of the catalytic converter, it is bank 1 sensor 2.





Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using FixYa, have a nice day.

what is the code that turned the light back on?????? if its a P0420, the cat is not good enough. you may need one good enough for California or a better quality converter.

Cat efficentcy. replace the converter.

I would send the car for a smoke test for the emissions leak...Find out where the leak is comming from..Repair it..Reset the codes, then do a drive cycle and see what happens...

not hard at all, many people have had O2 sensor problems if they have installed an aftermarket Cat ( Not Honda ) get new bolts and you should be done in under an hour.