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Your Catalytic Converter How It Works and Why It's the Most Vital Part Of Your Emissions System.
Your Catalytic Converter Is The Most Vital Part Of Your Emissions System But Can Be The Weakest Link In The Chain.
Because your Catalytic Converter in most cases is an unseen part of your vehicle it is considered "out of sight and out of mind" type part..Till something goes wrong. Due to improvements in design and construction modern Catalytic Converters are made to last 100,000 miles plus. Because of these factors Catalytic Converters rarely fail on their own. There are many factors that can cause your Catalytic Converter to fail. Some of these things are.

Out of tune vehicle. An out of tune vehicle will run below manufactures specifications for emissions and efficiency. When this happens your vehicle can run with either a rich or over lean mixture causing damage to your Catalytic Converter. Always keep your vehicle tuned up to insure a longer life for your Catalytic Converter.

Clogged or dirty filters. When an air or fuel filter becomes dirty or clogged it can cause a restriction and a poor running condition or in some cases engine or Catalytic Converter damage. Every three months examine your air filter for dirt or darkness of color. Change your fuel filter according to the vehicles specifications. These inexpensive often overlooked maintenance item are vital to engine and Catalytic Converter longevity. Whenever changing any engine filter always use the correct one for your vehicle ensuring correct engine performance.

Bad or contaminated fuel. Whenever you fill up make sure you purchase your precious fuel from a reputable gas station. A contaminated or bad tank of fuel can be the kiss of death for your Catalytic Converter. Sadly once a Catalytic Converter has be subjected to contaminated fuel for a short period it can cause the "biscuit" or internals of the Catalytic Converter to break down causing pre-mature Catalytic Converter. When in doubt about a fuel station move on to the next one. The few pennies a gallon you save may cost your $100.00 if not $1000.00 in the long run. Pennywise and dollar foolish in never a good idea when its comes to your Catalytic Converter.

Oxygen or O2 Sensors. O2 sensors receive or send a signal about the condition of the exhaust going through your Catalytic Converters. In most vehicles after 1996 you will have sensors before and after the Catalytic Converters. The O2 sensors before the Catalytic Converters sense the lean or rich condition of the exhaust before entering the Cats. With that reading they tell the engine management systems how to compensate for changes in the fuel mixture and adjust for optimum engine performance and clean emissions. The O2 sensors after the Cats sense the final exhaust reading to see if the Catalytic Converters and emissions systems are working properly. When these sensors are functioning below proper specifications or are inoperative they can send a false or non-signal to the engine management system. When that condition occurs your vehicle can run too rich or lean. In most cases a "check engine" light will occur giving you the codes to diagnosis the problem. The problem is when an Oxygen Sensor has failed this false signal and poor running can contaminate your Catalytic Converter in a hurry. O2 sensors are considered a maintenance item and should be replaced according to your vehicles specifications. These little sensors when in optimum operating range will help your Catalytic Converter live a long and clean life.

Air Flow and Temperature Sensors. Modern engines have many sensors that help the engine management systems stay at peak efficiency. These sensors monitor key parts of your engine such as air fuel ratio and coolant temperature. When one of these mal-function they can cause poor or incorrect information to the vehicles computer or engine systems. When this happens in most cases a "check engine" light will happen on the dash. With proper scanning tools these OBD 2 type systems will let you find the code and repair the problem. Anytime your engine is running with a bad or poor fuel air ratio it can cause your Catalytic Converter to fail or become contaminated. When a check engine light occurs don't wait to see what wrong. A few short days or miles can cause Catalytic Converter contamination or failure. Don't wait when a "check engine light" comes on. Act now ans save your Catalytic Converter.

Engine oil or coolant leaks. When you engine has an internal leak such as a head gasket this small amount of oil or engine coolant in your exhaust can contaminate a Catalytic Converter in less the a 100 miles. At any sign of white or blue smoke have your vehicle inspected ASAP. If your expansion or coolant tank has signs of oil in it have it inspected and repaired as needed. Waiting will cause engine damage or failure but can kill your Catalytic Converter long before its life span.

NOTE: Most aftermarket Catalytic Converter manufacturers will VOID a warranty if a Catalytic Converter is contaminated due to a bad engine running condition, over rich or lean fuel mixtures, engine detonation, overheating, coolant or oil in the internals of the Catalytic Converter, out of specification or failed Oxygen Sensors or any other engine condition that is not the fault of the Catalytic Converter.

History and How Your Catalytic Converter Works:
As early as 1974 in California and 1975 for the other 49 states of the USA motor vehicles have been equipped with Catalytic Converters. Invented in the mid 1950's by a French Mechanical engineer Eugene Houdry. Houdry was concerned about exhaust emissions and its impact on the environment. Invented years ahead of time Catalytic Converter were put into widespread use when emissions laws of the early 1970's were increased by both the California and Federal governments. Another result of Catalytic Converts is "unleaded fuel". Engineers for Detroit's Big Three discovered that the lead in fuel would cause contamination of the Catalytic Converters resulting in pre-mature and severe failures. This is the reason that any passenger car after 1975 can only use unleaded fuel. That is why your post 1975 car has the little gas flap door preventing you from using the larger leaded fuel nozzle. Early Catalytic Converters were bulky and prone to high heat due to the use of sulphur to convert the exhaust emissions. Due this sulphur base early converters had a "rotten egg" smell. Many reports in the early days of Catalytic Converters consisted of units setting leaves and lawns on fire when parked over them or rugs in cars going ablaze due to the high heat. Urban legends? Maybe. Due to vastly improved engine management systems, huge advances in Converter technology and use of ceramic and precious metals Catalytic Converters run much more cooler and efficient. A Catalytic Converter is a device used to convert toxic exhaust emissions from an internal combustion engine into non-toxic substances. Inside a Catalytic Converter a catalyst stimulates a chemical reaction in which noxious byproducts of combustion undergo a chemical reaction. The type of chemical reaction varies depending upon the type of catalyst installed, for example current North American gasoline powered Light Duty Vehicles are fitted with a Three-way Catalytic Converter which reduces carbon monoxide (CO), unburned hydrocarbons (HC), and oxides of nitrogen (NO, NO2, & N2O) to produce carbon dioxide (CO2), nitrogen (N2), and water (H2O). That water vapor is considered non-toxic for the environment. Since the early days of Catalytic Converters till today these devices are a vital part of your vehicles engine systems and performance. Keeping your engine and vehicle in correct running order will insure a long life for this complicated and delicate part of your vehicle.

Click Your Make for Catalytic Converters for Non-California Vehicles
ACURA Catalytic Converter
AUDI Catalytic Converter
BMW Catalytic Converter
BUICK Catalytic Converter
CADILLAC Catalytic Converter
CHEVROLET Catalytic Converter
CHRYSLER Catalytic Converter
DODGE Catalytic Converter
EAGLE Catalytic Converter
FORD Catalytic Converter
GMC Catalytic Converter
HONDA Catalytic Converter
HYUNDAI Catalytic Converter
INFINITI Catalytic Converter
ISUZU Catalytic Converter
JAGUAR Catalytic Converter
JEEP Catalytic Converter
KIA Catalytic Converter
LAND ROVER Catalytic Converter
LEXUS Catalytic Converter
LINCOLN Catalytic Converter
MAZDA Catalytic Converter
MERCEDES Catalytic Converter
MERCURY Catalytic Converter
MITSUBISHI Catalytic Converter
NISSAN Catalytic Converter
OLDSMOBILE Catalytic Converter
PLYMOUTH Catalytic Converter
PONTIAC Catalytic Converter
PORSCHE Catalytic Converter
SAAB Catalytic Converter
SATURN Catalytic Converter
SUBARU Catalytic Converter
SUZUKI Catalytic Converter
TOYOTA Catalytic Converter
VOLKSWAGEN Catalytic Converter
VOLVO Catalytic Converter
VW Catalytic Converter
Click Your Make for Catalytic Converters for California Vehicles
ACURA California Catalytic Converter
AUDI California Catalytic Converter
BMW California Catalytic Converter
BUICK California Catalytic Converter
CADILLAC California Catalytic Converter
CHEVROLET California Catalytic Converter
CHRYSLER California Catalytic Converter
DODGE California Catalytic Converter
EAGLE California Catalytic Converter
FORD California Catalytic Converter
GMC California Catalytic Converter
HONDA California Catalytic Converter
HYUNDAI California Catalytic Converter
INFINITI California Catalytic Converter
ISUZU California Catalytic Converter
JAGUAR California Catalytic Converter
JEEP California Catalytic Converter
KIA California Catalytic Converter
LAND ROVER California Catalytic Converter
LEXUS California Catalytic Converter
LINCOLN California Catalytic Converter
MAZDA California Catalytic Converter
MERCEDES California Catalytic Converter
MERCURY California Catalytic Converter
MITSUBISHI California Catalytic Converter
NISSAN California Catalytic Converter
OLDSMOBILE California Catalytic Converter
PLYMOUTH California Catalytic Converter
PONTIAC California Catalytic Converter
PORSCHE California Catalytic Converter
SAAB California Catalytic Converter
SATURN California Catalytic Converter
SUBARU California Catalytic Converter
SUZUKI California Catalytic Converter
TOYOTA California Catalytic Converter
VOLKSWAGEN California Catalytic Converter
VOLVO California Catalytic Converter
VW California Catalytic Converter

Full Line OEM Parts | Weber Carburetors

When replacing your catalytic converter it is often necessary to replace one or more of the oxygen sensors to correct fuel mixture problems. The incorrect fuel mixture will significantly reduce both your gas mileage and the life of the catalytic converter.


We feature Genuine BOSCH oxygen sensors!
Click here to find oxygen sensors for your vehicle.

PLEASE NOTE: Catalytic Converter Warehouse is not affiliated with the manufacturers of the automobiles whose names are mentioned on this site. Any reference to a manufacturer's name on this site is for descriptive purposes only. Catalytic Converter Warehouse is an independent distributor of auto parts for imported and domestic automobiles.

A partial list of models for which we offer catalytic converters: accord catalytic converter, bmw cat, bmw catalytic converter, bmw converter, camry catalytic converter, civic catalytic converter, corolla catalytic converter, ford catalytic converter, honda accord catalytic converter, honda catalytic converter, honda civic catalytic converter, hyundai catalytic converter, lexus catalytic converter, maxima catalytic converter, mazda catalytic converter, mercury catalytic converter, mitsubishi catalytic converter, nissan catalytic converter, toyota camry catalytic converter, toyota catalytic converter, toyota corolla catalytic converter and volvo catalytic converter.

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