DENSO YS589BX Upstream Air Fuel Level Sensor K20A2

( Brand: Denso ), ( Manufacturer Part Number: YS589BX ), ( Part Type: Fuel Sensor ), ( Placement On Vehicle: Upstream ), ( Manufacturer Warranty: 12 Month Warranty ), ( Info: Air / Fuel Ratio Sensor Oe Style Denso Is The O.e. Manufa. ), ( Years: 2002 2003 2004 02 03 04 ), ( Fitment: Acura Rsx Air Fuel Ratio Sensor ), ( Cs-sku: 400 )

Review DENSO Upstream Air Fuel Ratio Sensor Acura fits RSX 2002–2004

The Denso YS589BX Upstream Air Fuel Ratio Sensor is an essential component of the fuel delivery system in select 2002-2004 Acura RSX models with the K20A2 engine, as well as certain 2003 models. This sensor plays a critical role in maintaining the optimal air-fuel mixture for efficient combustion and reduced emissions.

The YS589BX is an upstream sensor, meaning it's located before the engine's throttle body. It continuously monitors the air-fuel ratio entering the engine and sends this data to the vehicle's engine control module (ECM). The ECM then adjusts the fuel injection and ignition timing accordingly to maintain the ideal air-fuel mixture for optimal engine performance and efficiency.

This Denso sensor features a heated oxygen sensor element, which ensures accurate readings in cold temperatures. The sensor element is coated with a thin layer of cerium oxide, which transforms the oxygen in the exhaust gases into an electrical signal that can be read by the ECM. The sensor's resistance changes depending on the oxygen content in the exhaust gases, allowing the ECM to determine the air-fuel ratio and adjust fuel delivery accordingly.

The YS589BX is designed to meet or exceed OEM specifications, ensuring reliable and accurate performance. It comes in a compact, durable housing that protects the sensor element from the harsh engine environment. The sensor is easy to install, with a simple plug-and-play design that connects directly to the vehicle's wiring harness.

In summary, the Denso YS589BX Upstream Air Fuel Ratio Sensor is a crucial component of the fuel delivery system in select Acura RSX models. It continuously monitors the air-fuel ratio entering the engine and sends data to the ECM for optimal fuel injection and ignition timing adjustments. With its heated oxygen sensor element and durable design, this sensor delivers accurate and reliable performance for efficient combustion and reduced emissions.

Denso YS589BX Upstream Air Fuel Sensor for 2002-2004 Acura RSX (K20A2) and 2003: Pros, Cons, and Recommendation

The Denso YS589BX is a popular upstream air fuel sensor choice for various applications, including the 2002-2004 Acura RSX (K20A2) and 2003 models. In this analysis, we will outline the pros and cons of purchasing this sensor, followed by a concluding recommendation.

1. OEM Quality: Denso is a well-known OEM (Original Equipment Manufacturer) that produces high-quality parts. The YS589BX sensor is no exception, offering reliable performance and accurate readings.

2. Durability: Denso sensors are known for their robust design and long service life, making them a preferred choice for many vehicle owners.

3. Easy Installation: The sensor is a direct replacement for the OEM part, ensuring a straightforward installation process with no modification required.

1. Cost: Denso sensors are generally more expensive compared to aftermarket alternatives. However, the increased cost may be justified by the sensor's high-quality construction and longevity.

2. Availability: Depending on the region and local market, the availability of this specific Denso sensor may be limited, requiring an online search or special order.

The Denso YS589BX upstream air fuel sensor is a solid investment for those seeking reliable, accurate, and long-lasting performance. Although it comes with a higher price tag compared to aftermarket alternatives, its OEM quality and durability make it a worthwhile consideration for vehicle owners looking to maintain their Acura RSX (K20A2) or 2003 models in peak condition.

If you value the peace of mind and confidence that comes with using OEM parts, the Denso YS589BX upstream air fuel sensor is a recommended choice for your 2002-2004 Acura RSX (K20A2) or 2003 model. While the cost may be higher than some aftermarket alternatives, the sensor's proven reliability and accuracy make it a worthwhile investment for those seeking the best possible performance from their vehicle.

Details:

Constructed from durable material. Condition: New Notes: Air / Fuel Ratio Sensor - OE DENSO is.E. Highly accurate. Manufactured to detect the amount of exhaust gas air fuel ratio.

Easy installation. Vehicle Fitment Information, , 2002 - 2004 Acura RSXK20A2Manual. Manufacturer / Direct Fit Air Fuel Ratio Sensor; OE. Features zircon solid electrolyte.

part #: ys589bx prices

• $111.99-$299.99

specifications acrasensor:

• for models: Rsx
• for makes: Acura
• for years: 2002-2004
• brand: Denso
• mpn: Ys589bx
• part type: Fuel Sensor
• placement on vehicle: Upstream
• manufacturer warranty: 12 Month Warranty
• info: Air / Fuel Ratio Sensor Oe Style Denso Is The O.e. Manufa.
• years: 2002 2003 2004 02 03 04
• fitment: Acura Rsx Air Fuel Ratio Sensor
• cs-sku: 400

general acrasensor:

• Car Truck Parts Accessories > Air Fuel Delivery > Air Intake Fuel Sensors
• condition: New

offer acrasensor:

• sold: 0
• options: Ship-to-home
• availability: In Stock
• quantity: 1
• started: May 22, 2025

seller acrasensor:

• city: Alsip, Illinois
• rating: 95.1%
• # reviews: 90659

shipping acrasensor:

• type: Fixed
• transit: 5-8 Days
• cost: $0.00
• service: FedEx Ground or FedEx Home Delivery
• carrier: FedEx
• class: Standard

payments acrasensor:

• other
• credit card: Discover
• wallet: Apple-pay

returns acrasensor:

• time: 30 Days
• paid by: Buyer
• policy: Returns Accepted

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