Catalytic converter replacement

You will need a oscilloscope or a scan tool and watch the rear o2 sensor for that bank. compare it with bank one.

since you were having a misfire raw fuel was getting into the cat and that can cause them to overheat and burn up this will need replacement.

Here is a guide to help you step by step with instructions in the diagrams below to show you how on your car.

https://www.2carpros.com/articles/catalytic-converter-replacement

Catalytic Converter

Removal and Installation
1. With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to Maintenance/Service and Repair.
2. Remove and discard the 2 nuts and the muffler clamp.
To install, tighten to 40 Nm (30 ft. lbs.).
3. Remove the 2 catalytic converter-to-dual Y-pipe nuts and the catalytic converter.
Discard the nuts and the gasket.
To install, tighten to 40 Nm (30 ft. lbs.).

4. NOTE: Clean the mating surfaces of the catalytic converter and the dual converter Y-pipe.

NOTE: To correctly seat the converters, alternately tighten the catalytic converter-to-dual converter Y-pipe nuts to specification.

To install, reverse the removal procedure.
Install new nuts, gasket and muffler clamp.

Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed.

Sounds like it could be a converter to me, if you have a vaccum guage we can perform a test to see if its exhaust sytem related.

You wouldnt clean it yourself you would be best off replacing it as the plugging probaly heated it up and weakened it and it will eventually go out again.

All depend on what you have for engine and emission
California emission is a different then the federal
before doing any ordering make sure you have the correct information (if it California or federal)
the price is about $ 300 dollars is for federal catalytic converter
some come with front and rear converter and have it checked
it is a B and  to do and that using a lift
I would imagine for it to be very difficult to do laying down under the vehicle
one more think was the O2 sensors checked
do you have any exhaust leak
all this would effect the catalytic converter

Sorry I didn't get your reply
let try that again
hit the reply to question
write down in clear box and hit submit

The Y catalytic converter assembly all you need as far as other converter even if you have it its not monitored and no need to replace it
(which I dont believe you have one )

I " œve always installed a new O2 sensors
with a job like this
yes you have four before and after the cat

if its monitors not getting ready
check if engine reaching operating temp
and also check thermostat and coolant sensor
check and monitor O2 sensors
if one was changed on a bank and not the other in some cases you would get similar codes

should not need to weld any pipes
it bolts to the manifolds and to the rear pipe

Hey WAKERS617,

You cannot clean a catalytic converter, this is a fallacy, They must be replaced don't believe the people who say that you can.

Replace the catalytic converter still cheaper than a new car

Please let us know happens so it will help others.

Best, Ken

What are the exact code numbers you have not code descriptions? I haven't seen that many coils go bad at once?Sounds like you have a plugged cat have a exhaust back pressure test done.

Oh yeah you have to have good air flow going in and good air going out of the engine.A plugged cat can greatly effect how the engine performs. See if you have a nice blue spark from the coils that they say need to be replaced? If they do they don't need to be replaced.

Many after market replacement should fit and work just fine
need to have you engine size and code

It will be based on if you purchase a direct fit part or a universal one. A direct fit will require you to unbolt the old one. A universal requires that you cut the old one off the OEM pipe and clamp the new one in place.

Let me know if you have other questions.

Joe