HomeEmission Control > SensorsDenso 234-9093 Air / Fuel Ratio Sensor - Upstream
Part #: 234-9093

Denso 234-9093 Air / Fuel Ratio Sensor - Upstream

OE Style, Upstream
⚙️ 7 vehicles fit this part
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Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦OE Style, Upstream
🚗Fitment: Mazda, MX-5 Miata
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Overview of the Denso OE Style Air/Fuel Ratio Sensor

The Denso OE Style Air/Fuel Ratio Sensor 234-9093 is designed specifically for Mazda MX-5 Miata models. This heated sensor ensures accurate air and fuel mixture readings, contributing to optimal engine performance and emissions control.

  • Heated sensor type for faster response times
  • Specific fit for Mazda MX-5 Miata
  • Wiring harness length of 8.90 inches for precise installation
  • Four-wire configuration for reliable signal transmission
  • Regular grade type ensuring consistent performance

Details on the OE Style Product Line

The Denso OE Style line focuses on providing replacement parts that closely match original equipment specifications. This air/fuel ratio sensor from the OE Style series is engineered to meet the exact fit and function requirements of the Mazda MX-5 Miata, ensuring compatibility and dependable operation within the vehicle's emission control system.

Product Features and Specifications

This air/fuel ratio sensor features a heated sensor element, which allows it to reach operating temperature quickly, improving the accuracy of air-fuel mixture readings. The sensor is designed with a specific fitment for the Mazda MX-5 Miata, ensuring proper installation and function. The wiring harness length measures 8.90 inches, providing adequate reach for connection without excess slack. With four wires, the sensor supports stable communication with the vehicle’s engine control unit. The regular grade type indicates standard quality suitable for everyday driving conditions.

Common Applications and Problem Resolution

  • Helps maintain proper air/fuel mixture for efficient combustion
  • Reduces emissions by providing accurate sensor data to the ECU
  • Addresses issues such as rough idling or poor fuel economy
  • Prevents check engine light triggers related to air/fuel ratio sensor faults
  • Supports smooth engine performance and responsiveness

Installation Notes and Tips

When installing the Denso 234-9093 air/fuel ratio sensor, ensure the vehicle is cool to avoid burns. Verify the wiring harness length of 8.90 inches is sufficient for your Mazda MX-5 Miata’s sensor location. Use proper tools to avoid damaging the sensor or wiring. It is recommended to check for any diagnostic trouble codes before and after installation to confirm proper function.

Quality Assurance and Warranty

Denso manufactures this air/fuel ratio sensor to meet OEM standards, ensuring reliable performance and durability. The part number 234-9093 is backed by Denso’s quality control processes. While specific warranty details may vary, Denso typically offers coverage against manufacturing defects to provide confidence in the product’s longevity.

BrandDenso
Part Number234-9093
PositionOE Style, Upstream
Grade TypeRegular
Sensor TypeHeated
Universal Or Specific FitSpecific
Wire Quantity4
Wiring Harness Length8.90

This part fits 7 vehicles. Search below:

YearMakeModelPositionNotes
2015MazdaMX-5 MiataUpstreamOE Style
2014MazdaMX-5 MiataUpstreamOE Style
2013MazdaMX-5 MiataUpstreamOE Style
2012MazdaMX-5 MiataUpstreamOE Style
2011MazdaMX-5 MiataUpstreamOE Style
2010MazdaMX-5 MiataUpstreamOE Style
2009MazdaMX-5 MiataUpstreamOE Style

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

LFN1188G1LFN1188G1A

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.