Hangzhou Longer Industry Co., Ltd.

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CNG/LPG conversion kit

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200 Piece/Pieces
Place of Origin:
Zhejiang China (Mainland)
Model Number:
Car Make:
Volkswagen, Hyundai, Toyota, Chery, B...
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Enterprise Certifiation

Hangzhou Longer Industry Co., Ltd.
China (Mainland) China (Mainland)
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Total Stuff:301 - 500 People
Manufacturer, Trading Company, Distributor/Wholesaler

Products details

Item specifics

  • Place of Origin: Zhejiang China (Mainland)
  • Port: Ningbo/Shanghai
  • Model Number: OMVL/AG/AC
  • Car Make: Volkswagen, Hyundai, Toyota, Chery, B...
  • Payment Terms: L/C,T/T,Western Union
  • Brand Name: Longer
  • Supply Ability: 10000 Set/Sets per Month
  • Type: gas conversion kit


1.CNG/ LPG conversion kits
2.cng kits,lpg kits
3.ISO/TS16949 certificated
4.Multipoint sequential injection system

CNG/ LPG conversion kits

 As a leading player of this area in China, we have a professional R&D team and a laboratory for product testing


EG800, the latest advanced multi-point injection system, has kinds of self-learning, self-adaptive and self-diagnosis functions. It adopt the signal of oxygen, MAP, speed, water/gas temperature, vacuum pressure and so on and track the Injection signal of original vehicle at the real time by using the source of original vehicle's sensor. It modifies dynamical the value of gas injection signal and make the gas injection signal and the original vehicle's injection be the same and modifies dynamical in order to make the vehicle more power/lower gas exhaust and lowest emission.



EG800 Technical Parameter:

1, Working Voltage: 8 ~ 16V 

2, Coil Resistance: ≥ 0.5 Ω 

3, Peak & Hold:peak & hold

4, Cylinder Type: sequential Injection 3 / 4 / 6 / 8 cylinder

5, Input Signal: original injection petrol signal,fuel pressure signal,water temperature signal,gas temperature signal,vacuum pressure signal,oxygen sensor signal

6, Ambient Temperature: -40°c ~ + 120°c

7,Waterproof Level: flush resistant

8,Connection: 48 Pin

9,Diagnostics Connector: RS232


EG800 ECU Set is including following main components below:

1, ECU (Electronic Control Unit)

2, Wire Bundle of ECU (Harness)

3, Map Sensor

4, Switch Unit (Intelligence Indicator or Digital Changeover Switch)

5, Gas Temperature Sensor

6, Water Temperature Sensor

7, Buzzer

8, Assembly Set (fuse)


System Characteristics:

  1. The air-fuel ratio of engine of engine is controlled with closed loop, therefore the exhaust gas emission is low (Euro 3 and Euro 4); And keep engine be more powerful
  2. Self-adaptive, self-diagnosis and self-learning function, No interference with the OBD system of the vehicle
  3. ECU set is suitable for both of LPG & CNG conversions, Optimized Varying Climate Conditions
  4. sequential gas injection system working in real time, assures optimum gas into each cylinder
  5. cooperation with lots of gas injectors well, adjusts opening time of each injector on the rail, Testing of the injectors enabling to diagnose the faulty injectors
  6. Takes signals in Real Time in all operating conditions to obtain optimum opening time of each injector.

a)       i.e. gas / water temperatures, manifold depression, rpm, petrol injection.

  1. High Reliability & Adaptability and User Friendly
  2. Easy Software Installation (Fully Windows Based)-Mapping & Calibration
  3. No Need of OMD Emulators
  4. Designed for ultra low emission
  5. Save to ECU/Load from ECU/Save to File/Load from File is all possible
  6. Pressure Sensor: Automatic switch to the gas when the gas is run out
  7. No need cutting off the wires thanks to sockets placed inside the injection connectors
  8. Diagnostic strategies are in force to enable automatic switching to gasoline mode should the system detect a fault, Auto fault clearance
  9. It manages full group motorisations, semi-sequential and sequential slave in one single card.
  10. Integrated Powerfully Microprocessors, Water Resistant-Waterproof Aluminums Box


What Is CNG

Compressed Natural Gas (CNG) is a readily available alternative to gasoline thats made by compressing natural gas to less than 1% of its volume at standard atmospheric pressure. Consisting mostly of methane, CNG is odorless, colorless and tasteless. It's drawn from domestically drilled gas wells or in conjunction with crude oil production.

As gasoline prices continue to rise, interest in CNG is rising accordingly. Natural gas powers more than ten million vehicles on the road today. And with good reason CNG costs about 40% less than gasoline, it emits up to 90% less emissions than gasoline,and theres an abundant supply.So its affordable, clean, and abundant.

Emissions reductions may vary by pollutant and make/model of vehicle.


When used as an automobile fuel, CNG is stored onboard vehicles in tanks that meet stringent safety requirements.

Natural gas fuel systems are "sealed," which prevents spills or evaporative losses. Even if a leak were to occur in a fuel system, the natural gas would dissipate up into the atmosphere unlike gasoline, which in the event of a leak or accident, pools on the ground, creating a fire hazard.

Natural gas has a high ignition temperature, about 1,200° Fahrenheit, compared with about 600° Fahrenheit for gasoline.

Natural gas is not toxic or corrosive and will not contaminate ground water.


The history of compressed natural gas (CNG) as a transportation fuel dates back to World War II.  Natural gas vehicles are a proven technology that have been enhanced and refined over the years into a convenient and extremely safe method of transportation.

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