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Exhaust Gas Temperature Sensor Supplier
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Automotive Sensor

SOOK High-Tech (Jiangsu) Co., Ltd., established in 2015 with a registered capital of 30.5 million yuan, is a national high-tech enterprise, a specialized and sophisticated "little giant" enterprise in Jiangsu Province, a national technology-based SME, and a certified software enterprise. The company is a member unit of the China Machinery Industry Standardization Technology Association, a council member of the China Sensor and IoT Industry Alliance, a council member of the Sensor Branch of the China Instrument and Meter Industry Association, and a member unit of both the China National Nuclear Corporation and the China State Shipbuilding Corporation Limited. It also serves as a council member of the Jiangsu Science and Technology Innovation Association.
Specializing in the development, design, production, and sales of automotive intelligent exhaust temperature sensors, intelligent NOx sensors, NH3 sensors, H2 sensors, and speed sensors, the company has an annual production capacity of 600,000 sensors of various types. Its product lineup includes over 2,600 models of exhaust temperature sensors, 450 models of automotive NOx sensors, and 1,300 models of ABS sensors. These products are widely exported to Europe and America.

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Specializing in the research and development of intelligent vehicle exhaust temperature sensor, intelligent NOX sensor, NH3 sensor, H2 sensor and speed sensor, design, production, sales and integration.

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Sook High Tech (Jiangsu) Co., Ltd.

SOOK High Tech (Jiangsu) Co., LTD. was established in 2015, with a registered capital of 30.5 million yuan. Has won High-tech enterprise, National science and technology small and medium-sized enterprise, Software enterprise, Member of China Machinery Industry Standardization Technology Association, Council Members of Sensor and IoT Industry Association, Council Members of China Instrument Industry Association Sensor Branch and Council Members of Jiangsu Import and Export Chamber of Commerce. As a professional China OEM/ODM EGT & automotive sensor supplier and wholesale exhaust gas temperature sensor factory , SOOK High Tech focuses on the design, production, sales and integration of various sensors for smart cars and industrial fields, as well as cables and heaters for the industrial field. Has an annual production capacity of 600,000 sensors of various types. There are more than 2,000 items of exhaust temperature sensors, 450 items of NOx sensors, and 1,300 items of ABS sensor, which are exported to Europe and the United States.

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Automotive Sensor Industry knowledge

What are the functions of the EGT sensor in the engine management system?
1. Real-time monitoring of exhaust temperature to protect the aftertreatment system
The EGT sensor accurately measures exhaust pipe temperature, helping the engine control unit (ECU) determine whether heating or fuel injection is necessary to prevent catalytic converter failure due to low temperatures.

2. Optimizing fuel economy and emissions control
By providing feedback on exhaust temperature, the system can adjust the air-fuel ratio under different operating conditions, achieving lower fuel consumption and better emissions compliance.

3. Supporting fault diagnosis and early warning
When exhaust temperature is abnormal, the ECU can quickly identify and record fault codes, providing a basis for repair and preventing damage to the sensor or exhaust components caused by overheating.

4. Improving engine power and responsiveness
Under high loads or during acceleration, appropriately increasing exhaust temperature can speed up turbocharger response and increase engine output. This function is particularly critical in modern high-performance vehicles.
How do I determine if the EGT sensor needs to be replaced?
1. Temperature Reading Deviation or Instability
When the actual measured exhaust temperature differs significantly from the ECU's expected value, and the error fluctuates over time, it's often due to signal distortion caused by aging or contamination of the sensor's internal components.

2. DTCs (such as P0106 ​​and P0107)
When the ECU detects a failure or abnormal signal from an upstream or downstream temperature sensor, it will log the corresponding DTC, prompting the need to inspect or replace the EGT sensor.

3. Heating Failure
Many EGT sensors have built-in heating elements to ensure measurement accuracy during low-temperature startups. Abnormal heating current or excessive heating time indicates damage to the heating circuit or sensor element, requiring replacement.

4. Deposits or Corrosion Detected During Visual Inspection
Prolonged operation in high-temperature, highly corrosive gas environments may cause carbon deposits, metal corrosion, or cracks to form on the sensor surface. These visible signs of damage are direct evidence of replacement.