Converter Installation

The vehicle has an engine that is older or newer than the vehicle or a larger engine has been installed. what type of converter, or does a converter need to be installed on this vehicle?

Engine changes present a problem and challenge to car owners and technicians. Contact your local Bureau of Automotive Repair (BAR) to make sure your vehicle is compliant to the Standards. A general guideline can be found

Can I replace a two-way converter with a three-way converter?

Yes, provided it has been tested for this type catalyst by the manufacturer in compliance with CARB aftermarket converter procedures.

How do I determine if i have a California emissions vehicle?

To determine if a vehicle has California emissions, check the emissions sticker on the vehicle, which is located in the engine compartment. If the sticker states the vehicle meets California requirements, then the vehicle is equipped with California emissions. Click Here For Engine Family Number Information.

Will replacing my converter with a new one eliminate the PO420/PO430 code from coming on?

There is no guarantee that replacing the converter will keep a fault code from coming back. If an engine performance issues exist, and it has not been repaired, the P0420/P0430 fault code may recur.

Are there any steps my technician can take to prevent my new converter from failing prematurely?

Yes, since converters are designed to last the life of the vehicle the technician should identify and correct the root cause of the original converter failure.– The technician should make sure any other codes are corrected prior to installing the new converter. This is especially true for misfire, mass air flow, rich/ lean conditions, and O2 response rate codes.– Pressure checks the cooling system to test for leaks which will contaminate the new converter.– Repair any exhaust leak that may be present. A stethoscope or a smoke test is successful ways in detecting an exhaust leak. However a smoke test can not only find escaping exhaust, but air that is being sucked in. An exhaust leak may affect converter and O2 sensor operation.– Check O2 operation: The front sensor should have good frequency, amplitude, and response rate and average 450mv. The rear should be fairly steady at idle and above 450mv (typically 650-850mv).– If both of the above O2 sensor readings are not present, the vehicle should be checked with a 4 or 5 gas analyzer and repairs should be performed.

As an installer of a new CARB Certified Aftermarket Catalytic Converter (AMCC), what are my responsibilities?

  1. Complete a warranty card in triplicate with the original going to the customer, one copy to the installer, and one copy to the manufacturer of the converter.
  2. Retain a copy of the warranty card for a minimum of four years from the date of the installation.