Rear O2 Oxygen Sensor 31480393 Heated Lambda Sensor for Volvo Air flow sensors facilitating vehicle maintenance
Product Description:
Air flow sensor
OE NO.: 31480393 31460846
Applicable vehicle type: For Volvo
The oxygen sensor can convert the oxygen concentration in the exhaust gas into an electrical signal and transmit it to the engine control unit (ECU), providing a key basis for the closed-loop control of the fuel injection system.
The common faults of automotive oxygen sensors mainly include carbon deposit blockage, damage to ceramic components, heater failure, etc., as specifically described below:
Carbon Deposit Blockage
When the engine combustion is incomplete (such as poor fuel injector atomization, spark plug failure), carbon deposits and oil stains in the exhaust gas will adhere to the surface of the ceramic probe of the oxygen sensor, isolating the probe from contact with the exhaust gas. This causes the sensor to be unable to perceive changes in oxygen concentration, resulting in distorted output signals, and subsequently leading to problems such as unstable engine idle and increased fuel consumption.
Ceramic Component Damage
The core sensitive component of the oxygen sensor is made of ceramic material, which is relatively brittle. If during maintenance, high-pressure air is directly blown onto the sensor or sharp tools are used to touch the probe, it can cause the ceramic tube to crack. In addition, high-temperature alternating conditions of the exhaust pipe and road vibration causing the sensor to loosen and collide can also lead to damage of the ceramic components. Once damaged, the sensor will completely lose its working ability.
Heater Failure
Modern automotive oxygen sensors are mostly heated types, with built-in heating resistance wires that can quickly raise the sensor to a working temperature of over 300°C. If the heating resistance wire is burned out, the fuse in the heating circuit is blown, or there is poor contact in the wiring, the sensor cannot reach the working temperature. After cold start, this will result in signal delay or even no signal, affecting the air-fuel ratio control of the engine during the cold start phase.
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.
The company primarily focuses on 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 other related parts. Facing the trend of economic globalization, our company is committed to bringing better products and services to the world, providing high-quality products and services for domestic and foreign enterprises and customers.
We welcome any inquiries and look forward to your contact.
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.
پیام شما باید بین 20 تا 3000 کاراکتر باشد!
