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Switch for LPG/CNG auto

Country/Region china
Company Yuyao Yechi Autogas Equipment Co., Ltd
Categories LPG Gas Cylinder
Telephone +86-574-6263-6197
ICP License Issued by the Chinese Ministry
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Switch for LPG/CNG auto

Switch for LPG/CNG auto
1. Description
It is one of the main components for the burning gas system, through collecting the fuel signal of the ECU control module which come from the original car, and integrate water temperature sensor signal, intake manifold pressure sensor, intake air temperature sensor, gas temperature sensor signal, gas pressure sensor signal, sensor crank shaft position sensor signal, then do the analysis processing, and send out the injunction to the burning gas mutual rail injection valve, when the engine stopped the gas system will be cut off automatically. It can further enhance the stability, security and rapid response, and other characteristics of the gas engine. Meet the requirements of the gas engine emission standards, such as EU2, EU3, EU4 and over.
2. Detailed parameters
Working Voltage


Suitable Fuel

Liquefied Petroleum Gas (LPG))

Other Performance

OBD Compatible, Self-Learning Function

Coil Resistance

3 ohm

Ambient Temperature Range


Cylinder Type

3,4,6,8 cylinder

3. AC300 ECU includes many parts as following:
  1. Computer ECU
  2. Buzzer
  3. Differential pressure sensor
  4. Water temperature sensor
  5. Gas temperature sensor
  6. Switch
  7. wire harness
4. 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.
7.High Reliability & Adaptability and User Friendly
8.Easy Software Installation (Fully Windows Based)-Mapping & Calibration
9.No Need of OMD Emulators
10.Designed for ultra low emission
11.Save to ECU/Load from ECU/Save to File/Load from File is all possible
12.Pressure Sensor: Automatic switch to the gas when the gas is run out
13.No need cutting off the wires thanks to sockets placed inside the injection connectors
14.Diagnostic strategies are in force to enable automatic switching to gasoline mode should the system detect a fault, Auto fault clearance
15.It manages full group motorisation, semi-sequential and sequential slave in one single card.
16.Integrated Powerfully Microprocessors, Water Resistant-Waterproof Aluminum Box
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