Two catalytic converters.
On a 2013 Honda Odyssey with the 3.5-liter V6 engine, the exhaust system is configured with two catalytic converters in series, one placed near the engine and another further back in the exhaust path. This dual-cat arrangement helps meet emissions standards and is common on Honda’s V6 models from that era.
Overview of the two-converter setup
The number of catalytic converters in a vehicle is driven by the engine layout, emissions requirements, and the manufacturer's design choices. For the 2013 Odyssey, the two-converter configuration is designed to maximize pollutant reduction while balancing performance and cost.
Typical two-cat layout for the 2013 Odyssey
Below are the locations you’re most likely to find on a typical 2013 Odyssey. The exact layout can vary by trim and production date, but the two-converter configuration is common.
- Primary catalytic converter: located close to the exhaust manifold on the engine side, handling the initial reduction of pollutants.
- Secondary catalytic converter: located downstream in the midsection of the exhaust system, providing a second stage of treatment before exhaust exits to the rear.
These two converters are typically accompanied by oxygen sensors: usually two upstream sensors (before the converters) and two downstream sensors (after each converter), enabling the engine control unit to monitor and adjust the exhaust treatment in real time.
Maintenance and replacement considerations
If you're inspecting or replacing the catalytic converters, it's important to confirm exact parts with your VIN or consult a Honda dealer or repair manual, as variations can occur by market and production year. Damaged converters can cause reduced performance, check engine lights, or failed emissions tests.
What this means for owners
For owners, understanding there are typically two catalytic converters helps when budgeting maintenance or identifying parts. If you’re experiencing symptoms like reduced power, sulfuric exhaust smell, or a check engine light, a diagnostic with a scan tool is recommended to determine if a converter or related sensor is at fault.
Summary
In summary, the 2013 Honda Odyssey commonly uses two catalytic converters in its exhaust system. While the standard setup is two, always verify with your vehicle’s documentation or a professional if you suspect a different configuration due to regional variations or manufacturing changes.