fits model: Tsx. make: Acura. year: 2009–2014.

( Brand: Denso First Time Fit ), ( Manufacturer Part Number: 21QG15D ), ( Part Type: Fuel Sensor ), ( Part Details: First Time Fit ), ( Fit Years: 2009 2010 2011 2012 2013 2014 ), ( Cs-sku: 400 )
The Denso 21QG15D Air Fuel Ratio (AFR) Sensor is an essential component of the fuel delivery system in select 2009-2014 Acura Tsx models equipped with a 2.4L engine. This sensor plays a crucial role in maintaining optimal engine performance and emissions compliance by continuously monitoring the air-fuel mixture in the engine's intake manifold and reporting this data back to the engine control unit (ECU).
This advanced Denso sensor is designed with a heated zirconia element, which ensures precise and stable operation in various temperature conditions. The sensor utilizes a wide-band measurement principle, providing a very high degree of accuracy in measuring the AFR, enabling the engine to run more efficiently and effectively.
The sensor housing is robust and compact, making it a perfect fit for the specified Acura applications. It features a built-in heater for improved cold-start performance, ensuring accurate AFR readings even in harsh winter conditions. The sensor's electrical connections are securely sealed with a waterproof and high-temperature resistant connector, protecting the sensor from potential damage caused by moisture or extreme temperatures.
The Denso 21QG15D Air Fuel Ratio Sensor is engineered to meet or exceed OEM specifications and is backed by Denso's reputation for manufacturing high-quality automotive components. By choosing this sensor, you can trust that you are installing a reliable and durable replacement for your vehicle's original sensor.
In summary, the Denso 21QG15D Air Fuel Ratio Sensor is a crucial component for maintaining optimal engine performance and emissions compliance in select 2009-2014 Acura Tsx models. With its advanced design features, including a heated zirconia element, wide-band measurement principle, and robust housing, this sensor offers superior accuracy, durability, and reliability.
The Denso 21QG15D air fuel ratio sensor is a crucial component of the fuel delivery system in 2009-2014 Acura Tsx 2.4L vehicles. This sensor measures the amount of air and fuel mixture entering the engine to maintain the optimal air-fuel ratio for efficient combustion and reduced emissions.
Pros of buying a Denso 21QG15D air fuel sensor:1. OEM Part: This sensor is an original equipment manufacturer (OEM) part, meaning it is the same sensor that came installed in your vehicle when it was new. This ensures a proper fit and optimal performance.
2. Reliability: Denso is a reputable and trusted automotive parts manufacturer, known for its high-quality products. The 21QG15D sensor is no exception.
3. Improved Performance: A faulty air fuel ratio sensor can lead to poor fuel economy, decreased engine performance, and increased emissions. Replacing the sensor with a new one can help restore the vehicle's performance and fuel efficiency.
4. Long-Term Savings: Although the initial cost of the sensor may be high, it can save you money in the long run by preventing potential engine damage and the need for costlier repairs.
5. Peace of Mind: Installing a new OEM sensor provides peace of mind, knowing that you have a reliable and functioning part in your vehicle.
Cons of buying a Denso 21QG15D air fuel sensor:1. Cost: Replacing an air fuel ratio sensor can be an expensive repair, especially when using an OEM part. However, the cost can be justified by the sensor's importance in maintaining the vehicle's overall performance and longevity.
2. Labor Costs: The installation of the new sensor requires professional expertise. Labor costs can add to the overall expense of the repair.
3. Availability: Depending on the location and availability, it may take some time to obtain the Denso 21QG15D sensor.
In conclusion, the Denso 21QG15D air fuel ratio sensor is a necessary investment for the proper functioning and performance of your 2009-2014 Acura Tsx 2.4L engine. Although the cost may be high, the benefits, such as improved performance, long-term savings, and peace of mind, make it a worthwhile investment. It is recommended to replace the sensor as soon as possible if it is faulty to prevent potential engine damage and costlier repairs in the future.
Measures A/F ratios from approximately 12:1 to 19:1. Condition: New OEM Vehicle Fitment, Position: Upstream, 2009 Acura TSX. Quick-response planar zircon element can quickly detect oxygen concentration. Vehicle Fitment Engine, Fit Notes: Air-Fuel Ratio Sensor - At catalyst inlet Upstream, 2014 Acura TSX2.4L 4 Cyl.
Increased performance by mapping a/f ratios throughout rpm range. Reduces emissions by keeping the air-fuel mixture at an optimum ratio. Reduced fuel consumption and maximizes catalytic converter life. Vehicle Fitment Engine, Fit Notes: Upstream, 2010 - 2013 Acura TSX2.4L 4 Cyl.