What does a trouble code on a catalytic converter mean?
Usually, when the catalytic converter runs into trouble, the Check Engine Light (CEL) will come on to alert you. The computer may store a trouble code (like P0420 through P0423) in memory. A trouble code doesn’t necessarily mean the expensive converter needs to be replaced; you need to do some troubleshooting before you decide.
What kind of test can I do on my catalytic converter?
There are three tests that can be performed to determine if the assembly is not working or plugged. Engine performance test with the exhaust partially disconnected. Each one of these items is available at Amazon or the local auto parts store. Some vehicles have a primary and secondary catalytic converter to help clean the exhaust gases.
What does it mean if your catalytic converter code is po420?
Please support our site’s generous sponsors. It is important to remember that if your “Check Engine Light” illuminates and someone just simply reads a code of PO420, 421, 430 or 431 this does not necessarily mean the Catalytic Converter is bad! All that code says is either Converter operating below efficency or Converter operating below threshold.
Where does the name catalytic converter come from?
The name catalytic converter was derived from its operation. Utilizing a catalyst combined with heat to convert the unburned gases into fully burnt gases. This catalyst is heated by the engine exhaust to excite the chemical reaction.
What does a bad catalytic converter do?
8 Signs of a bad catalytic converter It will be hard to start your vehicle. Your vehicles fuel efficiency will drop drastically. The check engine light will illuminate. The vehicle will fail the emission test. It will be hard to accelerate. You you will smell a rotten-egg-like smell. A cloud of black smoke will come out of your vehicle’s tail top.
How often should I replace my catalytic converter?
The catalytic converter, which converts harmful emissions into harmless gas, often lasts 10 years or longer and should be replaced only when needed.
What is a catalytic converter and how they work?
A catalytic converter is an exhaust emission control device that reduces toxic gases and pollutants in exhaust gas from an internal combustion engine into less-toxic pollutants by catalyzing a redox reaction (an oxidation and a reduction reaction).
What happens when a catalytic converter fails?
Symptoms of a Bad or Failing Catalytic Converter Reduced Engine Performance. One of the first symptoms commonly associated with a bad or failing catalytic converter is a reduction in engine performance. Rattling Noise. Rattling noises from under the vehicle are another symptom of a bad or failing catalytic converter. Sulfur Smell from Exhaust. Check Engine Light Comes On. Failed Emissions Test.