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CNG Multipoint Sequential Injection system

Country/Region china
Company Hongkong LGC Gas Equipment Co., Ltd
Categories CNG Engine Parts
Telephone +86 755 81780556
ICP License Issued by the Chinese Ministry
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    CNG Multipoint Sequential Injection system

    ECU-Eletronic Control Unit, for autogas sequential/direct injection system

    Product Features:

    1. According to signals from different sensors of the car engine, adjust the gas emitteddose to ensure an ideal air-fuel ratio;
    2. Follows closely the engine’s original injection signals, to fix gas injection timing;
    3. Completely self calibrating, and can be manually calibrated to various operating mode;
    4. Comprehensive diagnose the gas components and sensors, to judge if the gas system work
    well or not;

    5. No Lambda emulation required;

    6. Programming system: Mach Pro;
    7. Fireproof plastic cover, resistant to heat, and high anti-interference;
    8. Two types, suitable to 3, 4 cylinders and 6, 8 cylinders;

    9. Quality approved by ECE 67R regulation yet.

    Map Sensor:

    Product Feature:

    1. Operating voltage+12V DC

    2. Test pressure20KPa-400KPa

    3. Gas pressure20KPa-250KPa Map pressure

    4. Output operating voltage0.2V-0.8V

    5. Quality approved by ECE 67R-01 and 110R


    1. Compact size, easy installation

    2. Shows the gas volume of tank accurately

    3. Automatic switchover between oil and gas

    4. Gas forcestart function

    Water temperature sensor:

    Calibration interface:

    ECU Main Components are:
    ECU (Electronic Control Unit) ; Wire Bundle of ECU; MAP Sensor;
    Temp Sensor; Switch Unit.

    LPG/CNG ECU for 3/4 Cylinder car keeps valve core of stepping motor actuator at specific position when car start in order to control position and response speed of valve core. Mixture become thick when engine is highly loaded. When use CNG, it sends analog signal to original ECU of car. Through presetting parameter of ECU according to model of car, operation status of engine will be optimized.

    The electronic control unit (ECU) of the multipoint sequential system directly processes the injection timing of the original petrol injectors, transforming it into injection timing for the gas injectors. In this way the strategies defined by the vehicle manufacturer are guaranteed in terms of driving conditions and emissions.

    The system is controlled by ECU, The ECU collects data and adjust the right time of injection and control the gas to inject to the engine. It has a good heat dissipation, to transfer the heat from the compoment inside the ECU to outside with enhanced screening function that make ECU work under strong electromagnetic interference.

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