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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
My check engine light is on , mechanic said it is catalyst converter however the car run perfectly fine , no misfire or more
The impact on engine operation (and fuel efficiency) of a "failed" catalytic converter depends on exactly what the failure mode was. In one scenario, if the catalyst within the converter is simply "poisoned" and thus there is no longer any...
Question
what other issues can occur if a misfire troubleshooting problem is not fixed soon enough?
Unfortunately, it is possible to damage the catalytic converter, that is cause a blockage, if the engine misfires "too much" and/or for a prolonged period. It is not yet known whether your converter is damaged, but I will get to...
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...
Question
I need to replace my catalytic converter and I wanted to see what are the main parts I will need to buy that comes with it?
The parts required to change out a catalytic convertor will really depend on what type of converter is going to be used. There are factory type replacements that will use a flange and just get bolted into place, that will...
Question
Code PO430 needs to be fixed
The catalyst come as an assembly on most Ford and Lincoln vehicles. You may be able to go to an aftermarket muffler/ exhaust shop and just replace the one catalyst but the engine may not run evenly and the other...
Question
how many catalytic converters do it have
Your vehicle has two catalytic converters. These two converters are assembled, along with a muffler and some pipe, as one integral piece. The OEM Infiniti part number, if you require replacement of these converters, is 20020-CR91A. If you do a...
Question
For a 2012 Mazda CX5 Diesel, Model# LDA-KE2FW: Will I have problems if I remove the insert of the blocked Catalytic Converter?
If the DPF filter is plugged up and the DPF light is on, then the DPF filter needs to be replaced. If you were to remove the filter and not use it, then the emissions output will be higher than...
Question
My 2005 Kia Sorento doesn't have the power to go down the road. It will start and run, but it won't go faster than 35 mph.
Check to see if any vacuum lines were disconnected when your engine was serviced. A vacuum leak can cause the engine to have a loss of power under a load. If all of the vacuum lines are good, then the...
Question
Does guaranteed 2 pass mess up motors ?
Hello, thank you for writing in. While this product may not directly effect a perfectly good engine, if there are other issues with it, the problems may be exaggerated by the product. Also keep in mind that the product is...
Question
I have a 2007 dodge charger v6 3.5L engine NAG1 RWD Transmission. I'm confused in what is causing limp mode in my car..when the c
The code P0420 will cause the computer to put the transmission in limp mode to protect the catalytic converter. Check the following areas to see the cause for the P0420 code condition: P0420 A damaged or failed oxygen sensor...
Question
What's the difference between welding catalytic converters in place and placing a sleeve with clamps on it?
Hi there. It is okay to replace a catalytic converter with using clamps and sleeves. However, you will need to make sure that there is no exhaust leaks. An exhaust leak before any oxygen sensor will cause the engine light...

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