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catalytic converters

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Symptoms of a Bad or Failing Catalytic Converter
Common signs include reduced engine performance, rattling sounds, and the Check Engine Light turning on.
How Long Does a Catalytic Converter Last?
The catalytic converter converts pollutants in the exhaust system into less toxic pollutants by using a redox reduction method. The catalytic converter is located on the exhaust system of your vehicle, and...
How Exhaust Systems Work
It all starts in the engine In order to understand how the exhaust of a vehicle works, there must be a basic understanding of the engine as a whole. The internal combustion engine in...
How to Install a Catalytic Converter
A catalytic converter is one of the most important emissions components of the modern gasoline engine. It is part of the vehicle’s exhaust system, and is responsible for keeping...
P0420 OBD-II Trouble Code: Catalyst System Efficiency Below Threshold (Bank 1)
P0420 code means that either the upstream or downstream oxygen sensor in the catalytic converter is not working. Replacing these parts can fix P0420.
What Does the Catalytic Converter Warning Light Mean?
The catalytic converter warning light means the catalytic converter in your engine may not be working properly, possibly due to overheating.
What Does a Catalytic Converter Do?
The modern automotive exhaust system is much more advanced than what was available even just a couple of decades ago. After recognizing that the average automobile was one of the primary sources of global...

Related questions

Question
Can you give me a quote on replacing a catalytic converter for my vehicle?
Billing question sent to CS for the cost to replace the catalytic converter on a 2004 Hyundai Santa Fe.
Question
Catalytic converter issue?
Hi There, It sounds like you may have a clogged catalytic converter. A clogged or failing catalytic converter can cause the vehicle to have poor fuel economy. As you may already know, the catalytic converter converts toxic exhaust gases into...
Question
I have a QX56 2012 with 75k-Check engine light went on and dealer informs me it's the catalytic converters
Hello. It is possible that the issue is the converters as I have seen them fail prematurely on many Nissan vehicles. Being that the vehicle is only about 4-5 years old and does not have many miles you should contact...
Question
Can a Catalytic converter break up little pieces and ruin your engine
It is not possible for broken off pieces from a catalytic converter to get into your car's engine and damage it. However, if your vehicle's catalytic converter is damaged, including breakage or melting of the internal honeycomb substrate that contains...
Question
Why does my car struggle on any hill or highway ? It will not go above 30 mph and feels like it won't go above 2nd gear 2008 Kia Sportage
Hello - the loss of power you are experiencing could be a failed throttle position sensor, or a clogged catalytic converter. Either of these will reduce engine power, and cause the lack of performance you are seeing. I recommend a...
Question
Is there a certain mileage point the catalytic converter needs replacing on a 2008 Sequoia?
For the concern of the catalytic converter, as long as the engine has been kept up with the maintenance and the engine has a good fuel to air ratio, then the catalytic converter would work just fine. Catalytic converters can...
Question
Chrysler Sebring keeps setting codes even after replacing several parts
It sounds like you may have fixed the catalytic converter problem, but still have more issues. The codes you have now are as follows: P0101 MAF Circuit Range/Performance, P0202 Cylinder #2 Injector Circuit Malfunction and MAP Sensor Input High. These...
Question
Check Engine light on the Dashboard.
Hi there. The code P0420 could have an issue with the following: Having a damaged or failed oxygen sensor The engine coolant temperature sensor is malfunctioning Damaged or leaking exhaust manifold or leaking muffler / catalytic converter The spark...
Question
In limp mode following a catalytic convertor repair. Have driven 70 mIles in limp mode.
The only purpose of the catalytic converter is to reduce exhaust emissions. The converter is within the exhaust system and functions as part of the vehicle's emission control system. Excepting only an unusual circumstance where the converter is physically plugged...
Question
I have a new catalyic converter that I purchased
You are welcome to buy your own parts and book a certified mechanic from YourMechanic to install those parts or perform associated repairs. If you desire that your catalytic converter be replaced by a certified Mechanic, dispatched by YourMechanic right...
Question
Check engine light on
The most common causes of Diagnostic trouble code P0430 setting are a faulty catalytic converter, engine misfire, fuel injector leakage, engine mechanical damage, faulty oxygen sensor outputs and exhaust leaks. Additionally, in your circumstance, malfunctions in the charge air cooler...
Question
06 mazda3 runs idles wont accelerate no major engine codes one forlow coolant adn the other for catylist below effeciancy but noth
Be sure to maintain adequate coolant in the engine. If you suspect a leak, request a coolant leak diagnostic. The diagnostic trouble code referring to catalyst efficiency, although that issue should be resolved in a check engine light diagnostic, is...
Question
P0420 bad under body catalytic converter 2003 Nissan Altima
Hi there - you are correct that there are 2 catalytic converters on your vehicle; one (sometimes called a pre-catalyst) that is part of the exhaust manifold, and a 2nd converter further "downstream" in the exhuast system. It is the...
Question
Bought a car with 3 month warranty thank god. Day after Check Engine light came on. Brought it back to dealer. 2007 VW Jetta
Hi there - yes, smart and fortunate of you to get a warranty! And in this case, it appears the dealer has "done the right thing" and repaired the issue. It does not necessarily mean there is an on-going problem...
Question
Would mixing a quart of oil with a 15 gallon tank do damage to a I4? I just want it to blow black smoke. Any other ideas? thanks! 1986 VW Golf
Hi there - adding a quart of oil to your fuel tank will effectively do the same thing as putting diesel fuel into your tank. The engine will quickly foul the injectors and plugs, clog the catalytic converter, and stop...
Question
I keep having acceleration problems, the mechanic keeps saying catalytic converter 2006 Pontiac Torrent
Hi there - I would look for a trusted 2nd opinion. Having multiple failures of the same type is both expensive, and an indication that the real source problem is not being discovered. Get the problem codes that are setting...
Question
Replacing a Cat 1
There are two catalytic converters on the Expedition, one for each "bank" of the engine. Converter 1, corresponding to Bank No. 1 of the engine (passenger side of vehicle) has quite a bit of pipe integral with the converter and...
Question
Catalytic Converter Replacement - 2001 Lexus IS300.
Hi there. Before you decide to have the catalytic converter replaced in your vehicle, consider performing the following checks: Check the following: A damaged or failed oxygen sensor The oxygen sensor wiring damaged or connected improperly The engine coolant...
Question
What would happen if the wrong catalytic converter was installed in my 2001 Toyota Camry
Hello. The wrong converter will cause your check engine light to come on and will cause you to not pass emissions. It can also cause some performance and efficiency issues over time. There are specific converters built for all vehicles...
Question
Why am I getting a P0430 code in my 2002 Honda Accord
Hi there. Typically when you get this code it is due to a failing converter. You car has two of them, one for each side of the engine, and when they go bad anf no longer function right them this...

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