Denso 234-1022 Oxygen Sensor - Upstream

Denso OE Style Oxygen Sensor 234-1022

Denso 234-1022 is an OE-style oxygen sensor built as a direct replacement for specific Saturn applications. It is a non-heated, threaded sensor with a male connector and a single wire, made for upstream placement on select Saturn SC1, SC2, SL, SL1, SL2, SW1, and SW2 models.

For drivers searching for an upstream oxygen sensor for 1995-2002 Saturn SC1 or a direct-fit Saturn SL2 oxygen sensor replacement, this part is built to match the original configuration and wiring layout. The Denso OE Style line focuses on exact replacement fitment and sensor construction that follows OE standards.

Key Features

• OE Style direct replacement oxygen sensor
• Part number: 234-1022
• Non-heated sensor design
• Specific fit for select Saturn upstream applications
• 1-wire design with male connector
• Threaded mounting type with 0.708 thread diameter
• Wiring harness length: 8.78

Product Details

Denso manufactures this oxygen sensor to OE-style specifications for accurate replacement fitment and consistent signal performance. The sensor uses an aluminum oxide trap layer to help protect the ceramic element from silicone and lead contamination, supporting long service life and stable engine management operation. This makes Denso 234-1022 a practical choice for Saturn owners replacing an upstream sensor on SC1, SC2, SL, SL1, SL2, SW1, or SW2 models.

This part cross-references ACDelco 213-1186 and Bosch 13053 for the same application.

What It Helps Address

• Check engine light related to upstream oxygen sensor faults
• Incorrect air-fuel mixture readings
• Reduced fuel economy from a worn sensor
• Slow or unstable sensor response
• Emissions test failures tied to oxygen sensor performance

Installation Notes

Install this sensor in the upstream position only on the listed Saturn applications. Verify the threaded mounting point, connector style, wire count, and harness length before installation. Because this is a specific-fit sensor, matching the original application details is important for proper installation and operation.

Quality Assurance

Denso builds and tests this OE Style oxygen sensor to strict original-equipment standards for replacement accuracy and dependable operation. The design is intended to provide the correct part and fit for the listed Saturn applications, including 1995-2002 Saturn SC1, SC2, SL, SL1, SL2, SW1, and SW2 upstream sensor locations.