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WALKER® EXHAUST SYSTEMS: State Converter Installation Guidelines
Installer Notice Regarding Converter Replacement on OBDII Vehicles:
WALKER® EXHAUST SYSTEMS: State Converter Installation Guidelines

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.
  • Repair any exhaust system leaks.
  • Check O2 sensor operation to ensure vehicle is in fuel control.
  • To prevent contamination of a new converter, test the mechanical condition of the engine, including a pressure check of the cooling system.
    Failure to follow these recommendations may result in a recurrence of the original problem and could result in damage to the new converter.

WALKER® EXHAUST SYSTEMS: Determining the RIGHT Replacement Catalytic Converter
WALKER® EXHAUST SYSTEMS: Step 1
LOCATE THE VEHICLE’S EMISSIONS CONTROL INFORMATION LABEL

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, as required by the U.S. EPA.

This label is located in the engine compartment in a visible location - usually on the hood underside, strut tower, radiator support, fan shroud or firewall.


WALKER® EXHAUST SYSTEMS: Step 1

WALKER® EXHAUST SYSTEMS: Step 2
DETERMINE THE EMISSIONS CERTIFICATION

A vehicle is a California Emissions Certified model if the Emissions Control Label references: “California,” ”50-State,” “CARB,” or “ARB.” This information is vital when looking up parts in the application catalog, to ensure proper fit and also in navigating state-mandated aftermarket replacement converter regulations.

WALKER® EXHAUST SYSTEMS: Step 3
LOCATE THE ENGINE FAMILY NUMBER

The EFN, also referred to as the Engine Family Number, Engine Family Code, or Group Number is prominently located on the Emission Control Information Label, along with other important emissions specifications. This is vital information if regulations in your state mandate replacement converters be CARB-compliant. All OBDII applications in the Walker® CalCat® CARB-compliant catalog reference the EFN. 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.

WALKER® EXHAUST SYSTEMS: LOCATE THE ENGINE FAMILY NUMBER

WALKER® EXHAUST SYSTEMS: Step 4
CONSULT STATE REGULATIONS PERTAINING TO AFTERMARKET REPLACEMENT CONVERTERS

The states referenced below currently have active programs in place to oversee their aftermarket part regulations.

CALIFORNIA (Effective 1 / 1 / 09)

Aftermarket replacement converters for any vehicle licensed in the state of California must, by law, be CARB-compliant.

NEW YORK (Planned Effective 6 / 1 / 13)

For model years 1993, 1994, or 1996 and newer, aftermarket replacement converters for California Emissions Certified vehicles licensed in the state of New York must, by law, be CARB-compliant. It is, however, still legal to use EPA-compliant converters in these two circumstances:

1.) Vehicle model year 1995, or vehicle models older than 1993; and
2.) Federal / EPA Only Emissions Certified vehicles, regardless of model year.


NOTE: CARB does not certify any aftermarket converter for any vehicle less than six years old.

WALKER® EXHAUST SYSTEMS: California-Compliant Installation Requirements
Effective January 1, 2009, new aftermarket catalytic converters sold or installed in California must be designed to meet the following requirements:
  • Aftermarket converters are required to last for 5 years / 50,000 miles.
  • Aftermarket converters for newer vehicles must be compatible with OBDII catalyst monitors. This includes making sure converters won’t cause false catalyst codes, while also making sure that the OBDII system will continue to set a catalyst fault code if the aftermarket converter fails.
  • The warranty must be for 5 years / 50,000 miles and cover the cost of parts and labor if replacement is needed.
Determining the proper replacement converter for a particular vehicle takes a little research. The Walker CalCat catalog will specifically indicate which converter models are legal for use in California and which exact vehicle models they can be installed on.

California-Compliant Installer’s Checklist for New Aftermarket Catalytic Converters
1) The vehicle is specifically included in the application list for the catalytic converter and the converter is legal for use in California.
2) The vehicle’s warranty for the OE converter has expired. Warranties range from 7 years / 70,000 miles to 15 years / 150,000 miles. Consult the owner’s manual.
3) 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.
4) The replacement converter will be installed in the same location as the OE converter(the front face location will be within three inches compared to the OE).
5) All oxygen sensors will remain installed in their OE location(s).
6) The catalytic converter will be installed on a “one-for-one” basis (a new converter is installed for each OE converter being replaced). Decreasing or increasing the number of catalytic converters (compared to the OE configuration) is prohibited.
7) Warranty Card - Installer must:
a) Fill out the warranty card
b) Obtain the customer’s signature on the card
c) Give the original to the customer
d) Attach a copy to the original repair invoice
e) Return the pre-paid postage copy of the warranty card to the catalytic converter manufacturer
8) The installer must file and maintain a copy of all documentation for a period of at least four years from the date of installation.

ATTENTION: Under California regulations, it is illegal to install a catalytic converter based solely on physical shape, size, configuration or pipe diameter. See the Walker CalCat catalog application section for specific part numbers for a specific vehicle.

WALKER® EXHAUST SYSTEMS: CARB-Compliant Converter Emboss
Standards
Effective January 1, 2009
Walker offers quality direct-fit and universal converters that comply with EPA and CARB requirements.


WALKER® EXHAUST SYSTEMS: CARB-Compliant Converter Emboss
Standards

WALKER® EXHAUST SYSTEMS: Warranty