Denso 234-9119 Air / Fuel Ratio Sensor - Upstream

OE Style Air/Fuel Ratio Sensor for Honda and Acura

Denso OE Style Air/Fuel Ratio Sensor 234-9119 is a specific-fit, heated sensor built to match original equipment requirements for precise replacement. It is engineered for direct fitment on select Honda HR-V, Civic, Accord, and Acura ILX applications, with a 4-wire design and 10.83-inch wiring harness length for a clean OE-style installation.

Key Features

• OE Style replacement air/fuel ratio sensor from Denso
• Heated sensor design for faster operating temperature
• Specific fit for confirmed Honda and Acura applications
• 4-wire configuration for the listed vehicle applications
• 10.83-inch wiring harness length
• Regular grade type for direct replacement service
• Part number 234-9119 for accurate ordering and lookup

Product Details

Denso 234-9119 is manufactured and tested to OE standards for exact replacement and first-time fit. As part of Denso’s OE Style line, this air/fuel ratio sensor is built for drivers and technicians who need a direct replacement that matches the original sensor layout and electrical configuration. It is a fit for 2020-2022 Honda HR-V upstream, 2016-2019 Honda HR-V upstream, 2012-2015 Honda Civic upstream, 2014-2015 Honda Accord upstream, and 2013-2015 Acura ILX upstream. This part cross-references Honda 36531R1AA01 for the same application.

What This Sensor Helps Address

• Check engine light related to air/fuel ratio sensor performance
• Rough idle caused by inaccurate exhaust oxygen feedback
• Fuel trim issues from a failing upstream sensor
• Emissions test failures tied to sensor response problems
• Driveability concerns from delayed or incorrect air/fuel readings

Installation Notes and Tips

Install this sensor in the upstream position only on the listed applications. Verify connector style, harness length, and wire count against the original part before installation. For best results, inspect the exhaust threads and surrounding wiring before removing the old sensor, and confirm the vehicle application by year, make, model, and engine configuration before ordering. Part number 234-9119 should be matched to the confirmed OE-style application listed above.

Quality Assurance

Denso manufactures and tests this sensor to strict OE standards, with precision-built components intended to deliver the correct fit and function for the specified Honda and Acura applications.