Denso 234-4938 Oxygen Sensor - Upstream

Overview of the Denso OE Style Oxygen Sensor 234-4938

The Denso OE Style Oxygen Sensor 234-4938 is designed specifically for select Hyundai and Kia models, including the Elantra, Soul, and Tiburon. This heated oxygen sensor features a 20.16-inch wiring harness and four wires, ensuring precise emissions control and optimal engine performance.

• Heated oxygen sensor for faster response times
• Specific fit for Hyundai Elantra, Kia Soul, and Tiburon
• 20.16-inch wiring harness length for proper installation
• Four-wire design for accurate signal transmission
• Part number 234-4938 for easy identification

Detailed Features and Specifications

The Denso OE Style line focuses on providing oxygen sensors that meet original equipment specifications for reliable performance and durability. The 234-4938 sensor is a heated type, 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’s four-wire configuration supports both the sensor signal and the heater circuit, ensuring consistent operation. With a wiring harness length of 20.16 inches, this sensor is designed to fit precisely in the exhaust system of Hyundai Elantra, Kia Soul, and Tiburon models, avoiding the need for modifications.

Applications and Common Issues Addressed

• Helps maintain proper air-fuel mixture for efficient combustion
• Reduces engine misfires caused by faulty oxygen sensors
• Prevents increased emissions and failed emissions tests
• Improves fuel economy by providing accurate sensor data
• Resolves check engine light triggers related to oxygen sensor faults

Installation Notes and Tips

When installing the Denso OE Style Oxygen Sensor 234-4938, ensure the vehicle is cool to avoid burns. Disconnect the battery before removal to prevent electrical shorts. Use an oxygen sensor socket or appropriate tool to remove the old sensor carefully. Verify the wiring harness length and connector match the vehicle’s specifications to ensure a proper fit. After installation, clear any diagnostic trouble codes and perform a test drive to confirm sensor operation.

Quality Assurance and Warranty

Denso OE Style oxygen sensors are manufactured to meet or exceed OEM standards, providing reliable emissions control and engine performance. The 234-4938 part undergoes rigorous testing to ensure durability and accuracy. While specific warranty details may vary, Denso typically offers coverage against defects in materials and workmanship, supporting long-term use in Hyundai and Kia vehicles.