HomeEmission Control > SensorsDenso 234-2051 Oxygen Sensor - Downstream
Part #: 234-2051

Denso 234-2051 Oxygen Sensor - Downstream

OE Style, Downstream
⚙️ 6 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦OE Style, Downstream
🚗Fitment: Geo and Toyota, Prizm and Corolla
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Overview of Denso OE Style Oxygen Sensor 234-2051

The Denso OE Style Oxygen Sensor 234-2051 is designed specifically for select Geo and Toyota vehicles, including the Corolla and Prizm models. This non-heated oxygen sensor features a 7.87-inch wiring harness and a two-wire configuration, ensuring precise fitment and reliable emission control performance.

  • Non-heated oxygen sensor type for accurate exhaust gas monitoring
  • Specific fitment for Geo and Toyota Corolla and Prizm models
  • 7.87-inch wiring harness length for proper installation
  • Two-wire design compatible with original equipment specifications
  • Part number 234-2051 for easy identification and replacement

Details on the Denso OE Style Product Line

The OE Style product line by Denso focuses on delivering oxygen sensors that match original equipment specifications closely. This ensures that the sensor integrates seamlessly with the vehicle’s emission control system, maintaining factory performance standards. The 234-2051 oxygen sensor is part of this line, providing a direct replacement option for specific Geo and Toyota models without the need for modifications.

Product Description and Attributes

This oxygen sensor is a non-heated type, which means it does not include an internal heating element. It is designed with a wiring harness length of 7.87 inches, allowing for proper routing and connection within the vehicle’s exhaust system. The sensor uses a two-wire configuration, which is typical for non-heated oxygen sensors, providing the necessary signal for the engine control unit to monitor and adjust air-fuel mixture for optimal combustion and emissions control.

Common Applications and Issues Addressed

  • Helps maintain proper air-fuel ratio for efficient engine performance
  • Reduces harmful emissions by providing accurate oxygen level data
  • Prevents engine warning lights related to oxygen sensor faults
  • Addresses rough idling or poor fuel economy caused by faulty sensors
  • Supports compliance with emission regulations for Geo Corolla and Toyota Prizm

Installation Notes and Tips

When installing the Denso 234-2051 oxygen sensor, ensure the vehicle is compatible with this specific part number and fitment. The 7.87-inch wiring harness length should be routed carefully to avoid contact with hot exhaust components or moving parts. Use appropriate tools to remove the old sensor and install the new one without damaging the wiring or sensor threads. It is recommended to check for any diagnostic trouble codes before and after installation to confirm proper operation.

Quality Assurance and Warranty

Denso manufactures the OE Style oxygen sensors to meet strict quality standards, ensuring durability and reliable performance in emission control systems. While specific warranty details are not provided here, Denso products typically come with manufacturer-backed warranties covering defects in materials and workmanship. Refer to the product packaging or official documentation for exact warranty terms related to part number 234-2051.

BrandDenso
Part Number234-2051
PositionOE Style, Downstream
Sensor TypeNon Heated
Universal Or Specific FitSpecific
Wire Quantity2
Wiring Harness Length7.87

This part fits 6 vehicles. Search below:

YearMakeModelPositionNotes
1995GeoPrizmDownstreamCalifornia exempt parts can be used on pollution controlled vehicles in California.; OE Style
1995ToyotaCorollaDownstreamCalifornia exempt parts can be used on pollution controlled vehicles in California.; OE Style
1994GeoPrizmDownstreamCalifornia exempt parts can be used on pollution controlled vehicles in California.; OE Style
1994ToyotaCorollaDownstreamCalifornia exempt parts can be used on pollution controlled vehicles in California.; OE Style
1993GeoPrizmDownstreamCalifornia exempt parts can be used on pollution controlled vehicles in California.; OE Style
1993ToyotaCorollaDownstreamCalifornia exempt parts can be used on pollution controlled vehicles in California.; OE 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:

213-1212213-434

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