Rear Air Fuel Ratio Lambda Oxygen Sensor for Volvo
OE Numbers: 31370195, 30651718
Vehicle Compatibility: Volvo vehicles
Sensor Type: Upstream lambda sensor
Product Overview
The automotive oxygen sensor is a critical feedback component of the engine management system. Its core function involves real-time monitoring of oxygen content in exhaust gases, enabling the ECU to precisely control the air-fuel ratio for economical, clean, and efficient combustion.
Closed-Loop Control Functions
- Fuel Correction: ECU dynamically adjusts fuel injection quantity based on oxygen sensor signals to maintain optimal air-fuel ratio
- Catalyst Protection: Ensures three-way catalyst operates within optimal efficiency window (conversion rate above 95%)
- Cold Start Management: Provides open-loop control basis during engine warm-up phase
Performance Benefits
- Fuel Efficiency: Prevents prolonged rich combustion, saving 5-15% fuel
- Emission Reduction: Lowers harmful gas emissions including CO, HC, and NOx
- Engine Performance: Prevents spark plug carbon buildup and exhaust pipe corrosion
- Diagnostic Capability: Monitors catalyst aging and detects abnormal engine operation
Product Images
Company Profile
Beijing Huarui Jietong Trading Co., Ltd. brings 20 years of automotive aftermarket expertise as a professional auto parts supplier. With strategic locations in Beijing, Guangzhou, and Jiangsu, we efficiently meet quality and quantity demands for global customers.
We specialize in accessories for Land Rover, Jaguar, and Volvo product series, including Air Conditioning Systems, Braking Systems, Driving Systems, Engine Systems, Cooling Systems, Auto Body Systems, Steering Systems, Suspension Systems, Transmission Systems, and related components.
Our Advantages
- 20 years of specialized auto parts industry experience
- Expert technical team for comprehensive support
- Direct partnerships with repair shops for real-world feedback
- Premium quality parts ensuring reliability and durability
- Extensive inventory with over 500,000+ items ready to ship
- Responsive customer service with quick turnaround
- Customized solutions for specific vehicle requirements
- Professional technical guidance and installation support
- Comprehensive 12-month warranty coverage
- Competitive pricing through optimized supply chains
- Rigorous quality control meeting industry standards
- Efficient global shipping via multiple carriers
Frequently Asked Questions
Shipping Information
Items ship within 3-7 business days via Epacket/UPS/FEDEX/DHL/EMS.
Remote areas may incur additional shipping fees.
Inspect items upon delivery and contact us immediately for any damage.
Russian customers must provide full name; Brazilian customers must provide tax number for courier shipments.
Warranty & Support
12-month warranty included with professional after-sales support for any product inquiries or issues.
Import Notes
Import duties, taxes, and charges are not included in shipping costs and are the buyer's responsibility.
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