HomeEmission Control > SensorsDenso 234-3052 Oxygen Sensor - Upstream
Part #: 234-3052

Denso 234-3052 Oxygen Sensor - Upstream

OE Style, Upstream
⚙️ 2 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦OE Style, Upstream
🚗Fitment: Toyota, Supra
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Overview of the Denso OE Style Oxygen Sensor 234-3052

The Denso OE Style Oxygen Sensor 234-3052 is designed specifically for Toyota Supra models, providing precise emissions control and engine performance monitoring. This heated oxygen sensor features a 19.84-inch wiring harness and three wires, ensuring accurate data transmission to your vehicle's engine management system.

  • Heated oxygen sensor for faster activation and accurate readings
  • Specific fitment for Toyota Supra models
  • 19.84-inch wiring harness length for optimal installation
  • Three-wire design for reliable signal and heater control
  • Part number 234-3052 for easy identification and replacement

Detailed Features and Specifications

The Denso 234-3052 oxygen sensor is a heated sensor, which means it includes an internal heating element to bring the sensor up to operating temperature quickly. This feature helps reduce emissions during cold starts and improves fuel efficiency. The sensor is designed with a 19.84-inch wiring harness, providing sufficient length for proper routing and connection in the Toyota Supra. With three wires, this sensor supports both the signal output and heater circuit, ensuring consistent performance and durability.

About the OE Style Product Line

The Denso OE Style product line focuses on delivering parts that meet original equipment specifications. This ensures that the 234-3052 oxygen sensor matches the fit, form, and function of the factory-installed component in Toyota Supra vehicles. Choosing an OE Style sensor helps maintain the vehicle’s emission control system integrity and supports compliance with environmental regulations.

Common Applications and Issues Addressed

  • Replacement for faulty or failing oxygen sensors in Toyota Supra
  • Helps resolve rough idling and poor fuel economy caused by sensor malfunction
  • Reduces increased emissions and failed emissions tests
  • Improves engine performance by providing accurate air-fuel mixture data
  • Prevents check engine light triggers related to oxygen sensor faults

Installation Notes and Tips

When installing the Denso 234-3052 oxygen sensor, ensure the vehicle is cool to avoid burns. Use an oxygen sensor socket or appropriate tool to remove the old sensor carefully. Verify the wiring harness length and connector compatibility with your Toyota Supra before installation. Avoid damaging the sensor tip and wiring during handling. After installation, clear any diagnostic trouble codes and perform a test drive to confirm proper operation.

Quality Assurance and Warranty

Denso oxygen sensors, including the 234-3052, are manufactured to meet strict quality standards and original equipment specifications. This ensures reliable performance and durability in emission control applications. While specific warranty details may vary, Denso typically offers coverage against defects in materials and workmanship, supporting long-term use in Toyota Supra vehicles.

BrandDenso
Part Number234-3052
PositionOE Style, Upstream
Sensor TypeHeated
Universal Or Specific FitSpecific
Wire Quantity3
Wiring Harness Length19.84

This part fits 2 vehicles. Search below:

YearMakeModelPositionNotes
1992ToyotaSupraUpstreamOE Style
1991ToyotaSupraUpstreamOE 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:

213-1258

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