Why do I need a catalytic converter for my Nissan Altima?
2005 Nissan Altima Catalytic Converter: I Took My Car to My Local I took my car to my local dealer for an unrelated problem and the service advisor told me that my “check engine light” was on, he checked it out and told me I needed a new catalytic ASAP or my engine will blow up very soon.
What are the symptoms of catalytic converter replacement?
The typical symptoms are very low engine power, engine overheating, an unusual hiss from the tail pipe, and possibly some popping out of the intake system. The engine will also have a tendency to idle unusually smoothly. Before you have the converter replaced, the emissions system should be inspected and tested first.
Is there a second sensor after the catalytic converter?
Since 1996, there has been a second O2 sensor after the catalytic converter. If the converter is working proprly, that second sensor will switch between rich and lean very slowly, perhaps many seconds between cycles. When the converter stops changing the exhaust gases into something harmless, the stuff going out is the same as the stuff going in.
Can a catalytic converter be plugged into an engine?
The second O2 sensor switches at the same faster rate as the front one. That’s how the Engine Computer can tell when the converter isn’t dong it’s job. That alone should not damage the engine. The converter can also become plugged from leaded fuel in the past, and from the catalyst melting today.
Why does my Altima catalytic converter keep failing?
Catalytic converter issues can include it being damaged, clogged, or failed. Physical damage will tend to cause unexpected noise, whereas a failed cat will have a greater impact on engine performance. While the Nissan Altima catalytic converters last a long time, they do need to be replaced eventually.
What does P0420 mean on a Nissan Altima?
Your Nissan Altima leaves the factory with a catalytic converter. It can run into problems over the normal life of the vehicle, and is often accompanied by OBDII code P0420. Below we’ll cover the location, price, and symptoms of a bad torque converter in your Altima. What is a Catalytic Converter Anyway?
What are the symptoms of a bad catalytic converter?
Most of the symptoms of a bad catalytic converter have to do with the lack of exhaust flow through the Cat. Once it gets so clogged, your Altima will be barely drivable. Here are the most common signs of a bad catalytic converter in a Nissan Altima: MPG Suffers – As the exhaust flow begins to slow, your gas mileage will as well.
How often do catalytic converters need to be replaced?
Physical damage will tend to cause unexpected noise, whereas a failed cat will have a greater impact on engine performance. While the Nissan Altima catalytic converters last a long time, they do need to be replaced eventually. This is usually around every 100,000 miles.