The catalytic converter is most probably broken
Catalyst efficiency failure.The catalytic converter has failed.Catalyst efficiency failure.The catalytic converter has failed.
Catalyst efficiency below threshold, your catalytic converter may have failed.Catalyst efficiency below threshold, your catalytic converter may have failed.
P0430 means:Catalyst system efficiency below thresholdFailed catalytic converter.P0430 means:Catalyst system efficiency below thresholdFailed catalytic converter.
If there are no exhaust leaks or other codes, the catalytic converter has failed. You will need to replace it.
That depends on the malfunction. A loose cap gap could be fixed very cheaply. A failed catalytic converter can be hundreds of dollars.
A failed catalytic converter is one of hundreds of parts that can cause the check engine light to be on.
Code p0304 is a cylinder #3 misfire.
Two main causes: the inner parts have failed, or the outer heat shield has failed.
FIRST you find out why the OLD converter failed. If it's oil fouled, a new converter won't last long and you're just waisting money if you just replace the converter.If the converter is oil fouled, you'll need to rebuild or replace the engine first.Other than that, it's usually best to cut the exhaust line and weld in the new converter.
What about it? All cars will produced NOx. If it failed a e-test it will be because either the catalytic converter is done or the EGR is not working. Or if you have a VR6 then it could be a the secondary air pump not working.
We have a 1993 Ford Bronco with 2 catalytic converters. Had one of the 2 replaced over a year and a half ago when we failed emissions. We passed with flying colors. So I say, it can be done.
Exhaust leak, failed oxygen sensor, failed catalytic converter.
Yes, it will loose power and use an excessive amount of fuel.
P0420 : catalyst efficiency failure. You have a failed catalytic converter.
Bank 1 catalyst efficiency failure. The catalytic converter has failed.
A failed oxygen sensor could possibly cause a catalytic converter fault code.
The catalytic converter for bank one is not working properly. Either a exhaust leak, a failed O2 sensor, or a failed cat.
Depends on which of the readings failed. Was it CO (carbon monoxide), HC (hydrocarbons), NOx (nitrous of oxides), or a combination of them?
Catalytic converter efficiency failure.
A partially clogged converter will rarely prevent you from driving the car. You can usually drive it indefinitely if it is only partially clogged. You will however see a drop in performance and fuel mileage. Once the converter becomes completely clogged, which is will over time, it must be replaced. Also if you have state emissions testing it will fail with a bad converter. A bad converter is also polluting the atmosphere. Before replacing the converter find out why it failed. Also know that the converter may be covered by the 8 year 80,000 mile federal emissions warranty.
excessive exhaust back pressure, possibly a failed catalytic converter
The exhaust is plugged, most likely a failed catalytic converter.
You failed to mention the year but I would suspect a plugged fuel filter or a damaged catalytic converter.
code P0420 is set when the computer detects a fault in the three way catalytic converter circuit. there is a oxy sensor before and after that cat, and if the sensors do not read what they are supposed to be, it sets a code 420, which could be a failed sensor, or a failed catalytic converter, or a failure in wiring. Depending on high mileage or not, it is most often the cat worn out or, a sensor worn out.