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Revisor Menu. Authenticate PDF. These manuals are good resources for repair technicians and vehicle dealers concerned about the federal and state anti-tampering laws. May I sell a tampered vehicle to a salvage dealer for parts? Yes, if the dealer is a licensed salvage dealer. Vehicles with salvage certificates of title are exempt from the provisions on the anti-tampering law. Be sure that the dealer to whom you sell the tampered vehicle has a salvage dealer license and that they intend to obtain a salvage certificate of title for the vehicle It is a good idea to get this in writing.
Following the above procedure will make it clear that you intend to comply with the anti-tampering law. Can I work on a vehicle which was previously tampered with? However, if you are replacing a part that is not the proper part for that vehicle and emission system, then you are required to put the proper parts back on the vehicle. If you perform any work on any part of the vehicle which has been previously tampered with, you must perform the correct repair or not do it at all in order to not be liable for tampering.
This is true regardless of the age or mileage on the vehicle, and applies to any motor vehicle which was designed to meet federal emissions standards. Do mechanics have to use replacement parts that are made by the manufacturer? You may also use rebuilt parts, or equipment made by independent aftermarket parts manufacturers. Replacement parts must be equivalent in design and function to the parts that were originally on the vehicle when it was certified. They must not have a negative effect on emission control.
To prevent a recurrence of emissions-related problems, the following steps should be taken prior to replacing a converter on a vehicle equipped with an OBDII system:. Prior to installation of a new converter, retrieve all PCM Powertrain Control Module trouble codes and perform required repair procedures for any stored codes.
On some applications, manufacturers may have issued Technical Service Bulletins indicating that re-flash updates of the PCM may be required to resolve emissions problems.
Failure to follow these recommendations may result in a recurrence of the original problem and could result in damage to the new converter. Some states now require use of CARB-compliant aftermarket converters in certain circumstances. The states referenced below currently have their own regulations governing the sale and installation of aftermarket converters.
To determine which catalytic converter to use on a vehicle, it is necessary to determine the specific emissions system installed by the OE manufacturer. This information is provided on the vehicle's Emissions Control Information Label located in the engine compartment in a visible location — usually on the hood underside, strut tower, radiator support, fan shroud or firewall.
This is vital information if regulations in your state mandate replacement converters be CARB compliant. This information is vital when looking up parts in the application catalog, to ensure proper fit and when navigating state-mandated aftermarket replacement converter regulations. Be sure to verify your EFN to avoid misapplication of the replacement catalytic converter. If the label is missing, it is necessary to contact the OE dealer for the information, or to order a new Emission Control Information Label.
Determining the proper replacement converter for a particular vehicle takes a little research. Consult the owner's manual for details.
The installer has confirmed the need for a replacement catalytic converter. If the OEM converter is still present, a diagnosis that it is malfunctioning is required.
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