California Legal Catalytic Converter List

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ATTENTION: Under California regulations, it is illegal to install a catalyst based solely on the physical form, size, configuration or diameter of the pipe. Specific part numbers for a specific vehicle can be found in the scope of the Walker CalCat catalog. If you cannot prove that your vehicle`s catalytic converter has the right fit and construction, or that it was installed before 2009, the following search table of the ARB aftermarket catalytic converter will show you which ARB-approved CATs are currently allowed for your make, model, year and vehicle engine size. Documents related to the Commission`s adoption of new requirements for replacement catalysts include, but are not limited to, the announcement of the public hearing, the staff report and the regulations. Operation: The catalytic converter is a catalytic converter, no matter how well your engine is working. The catalytic converter only starts operating after the exhaust gases have been excreted from the engine`s combustion chambers. When the hot exhaust gases are pushed through the catalytic converter, they touch the catalyst substrate. This leads to a rapid increase in temperature, which causes the exhaust gases to burn hotter, which ultimately reduces emissions. They can only be installed in applications listed in the manufacturer`s vehicle application catalog and in accordance with carb installation guidelines. The vehicle`s emission guarantee for the original converter has expired.

Warranties range from 7 years/70,000 miles to 15 years/150,000 miles. Consult the user manual for more details In accordance with current regulations, an OBD II pre-converter (before 2009) can pass the smog test as long as it was installed before 1/1/09, and you can provide the smog station with proof of the date of installation and proof that the CAT is specially designed for use in your vehicle (including the brand, Model, year, B. and engine size). The following is an ARB PDF from California explaining California`s new CAT law. Contact the California Smog Check Referee Office at (800) 622-7733 for more information or to make an appointment for a smog inspection. The service life of a vehicle catalytic converter depends on how the engine completely burns the fuel before it is presented to the catalytic converter, as well as the quality of the CAT. Factory TACs should normally last 7 to 10 years. Catalytic converter failures are more common in vehicles that have been poorly maintained and have caused high emissions in more than one category. To determine which catalytic converter to use in a vehicle, it is necessary to determine the specific emission system installed by the original manufacturer. This information can be found on the vehicle`s emission control information label, which is located in a visible location in the engine compartment – usually on the underside of the hood, strut turret, radiator mount, fan shroud or firewall. The State of California has issued EXECUTIVE ORDER NUMBERS for all listed California applications. Each refers to a specific vehicle, to ensure compliance with government regulations, please make sure the above 5 points match.

If you have any questions, please contact the Compliance Hotline Monday to Friday 7-3 Pacific Time at 1-800-288-7730 or contact us at any time. MAINE (Effective 2018-06-01) CARB-compliant aftermarket replacement converters are required for California Emissions certified vehicles from 2001 model years operating in the state. EPA-compliant converters can be used for vehicles from model years 2000 and above, OR for all federal/EPA emission certified vehicles only, regardless of the model year. Since the introduction of the new STAR Smog Check program, smog stations have taken great care to ensure that vehicles are equipped with appropriate/required catalytic converters. The smog verification technician will check your vehicle`s catalytic converter to get an OE/buffer number. If the OE number (executive order) does not match the correct OE number listed on the California Air Resources Board`s website for authorized aftermarket catalytic converters, your vehicle will not pass the visual portion of the smog test as “emissions manipulation.” Once the reduction of HC and CO has occurred through extreme heating, a NOx reduction substrate in the 3-way catalyst separates the harmful pollutant known as nitrogen oxides into nitrogen and oxygen. The installer confirmed the need for a replacement catalytic converter. If the OEM converter is still present, diagnostics are required for it not to work properly. In the past, if your vehicle has placed smog commands with a catalytic converter that does not occur now, and you are sure that the catalytic converter has already been approved for use in your vehicle, you can resort. The following links provide additional information to aftermarket catalyst manufacturers: For smog testing: During the smog inspection, the smog technician visually verifies the presence and proper connection of the catalyst. If your vehicle does not pass the smog test, the CAT may be suspicious.

A vehicle`s catalytic converter usually becomes clogged after a hardware failure, usually due to high exhaust gas temperatures and rich fuel. After the initial inspection of the fuel and ignition systems, an intrusive CAT test and a back pressure/vacuum test can be performed. These tests determine if the catalyst is connected. The most important thing here is this. If the CAT is indeed damaged, it is important to ensure that a pre-existing problem is not the culprit. Learn how to choose the right catalytic converter for your vehicle to meet your government emissions regulations. All OBD applications in the CARB-compliant walker® CalCat® catalog refer to an EFN. Be sure to check your EFN to avoid incorrect application of the replacement catalyst. If the label is missing, it is necessary to contact the OE dealer for information or to order a new emission control information label.

You don`t want to damage a new catalytic converter after a replacement. CAT fusion usually occurs due to a high level of CO (rich fuel), over time, and extreme heat. It is recommended to suspect a defective CAT only after a complete diagnosis of the emission system. Most vehicles must be equipped with a catalytic converter. Some older vehicles and heavy trucks may be exempted. If your vehicle requires one (or two or three, depending on the vehicle model), it must be present, installed and functioning properly. The catalyst is installed “one by one” (a new converter is installed for each OE converter to be replaced). It is forbidden to reduce or increase the number of catalysts (compared to the OE configuration). Be labeled or labeled with an EO (Executive Order) CARB number indicating that the converter meets California requirements for aftermarket transformers.

Before installing a new converter, retrieve all error codes from the powertrain control module (PCM) and perform the necessary repair procedures for all stored codes. For some applications, manufacturers may have issued technical service bulletins indicating that re-flash updates to the PCM may be required to resolve emission issues. The outside of the catalyst is usually made of stainless steel. The catalyst is very similar to a silencer, except that it contains a catalyst substrate. Most of the time, you will turn the catalytic converter under your vehicle towards the center of the exhaust system. For some models of 4- and 6-cylinder engines, you will see the CAT directly after the exhaust manifold. On these vehicle models, the CAT and exhaust manifold may be a single unit and may contain a second or third CAT lower in the exhaust system; but always in front of the silencer. Determining the right replacement converter for a particular vehicle requires a bit of research. The Walker® CalCat catalog® specifies exactly which converters are legal for use in California and on which vehicle models they can be installed. The EFN, also known as engine family number, emission family number or test group number, is prominently displayed on the vehicle`s emission control information label as well as other key emission specifications.