How many catalytic converters does a 2015 Acura TLX have?
Two catalytic converters. The 2015 Acura TLX is configured with two catalytic converters in its exhaust system, a setup that applies to both available engines—the 2.4-liter inline-four and the 3.5-liter V6.
Engine options and exhaust layout
V6 and four-cylinder configurations
The 2015 TLX offered two engines: a 2.4L inline-four and a 3.5L V6. In both cases, the exhaust system includes two catalytic converters to meet emissions requirements and support overall engine performance.
- 2015 TLX with 2.4L I4: two catalytic converters are used in the exhaust path—one positioned near the engine (pre-cat) and a second downstream in the system.
- 2015 TLX with 3.5L V6: two catalytic converters are used as well, typically arranged to cover each bank of the V6 along the dual exhaust paths.
Whether equipped with the four-cylinder or the V6 engine, the TLX generally employs a dual-catalyst setup rather than a single unit.
Maintenance considerations
Understanding the two-converter configuration informs diagnosis, maintenance, and potential replacements. Proper inspection includes paying attention to sensor placements around the catalysts and understanding how emissions codes relate to each bank or exhaust section.
- Oxygen sensors: expect upstream and downstream sensors around each converter, which monitor efficiency and help manage catalytic performance.
- Common trouble codes: be on the lookout for P0420 or P0430, which indicate catalytic efficiency issues and can involve one or both converters.
- Replacement implications: when replacing, verify whether both converters or just one needs service, and ensure the replacement matches the vehicle’s emission specifications.
- Warranty considerations: catalytic converter coverage may be included under federal emissions warranties or vehicle warranties, depending on mileage and age.
These points help ensure accurate diagnosis and appropriate maintenance decisions for the TLX’s catalytic converters.
Additional notes
While the standard configuration in the 2015 TLX is two catalytic converters, variations can arise from aftermarket modifications or specific regional emissions requirements. Always refer to the vehicle’s service manual or a licensed technician for the exact specification on a given car.
Summary
The 2015 Acura TLX uses two catalytic converters across its engine options (2.4L I4 and 3.5L V6). This dual-cat design accommodates emissions standards and supports engine performance, with sensors positioned to monitor each converter’s efficiency. For maintenance and replacements, consider sensor placement, applicable fault codes, and warranty coverage to guide decisions.
