Four-Channel Gas Metering and ECU Compatibility
This four-channel gas injector rail uses 3Ω coils and an aluminium alloy body. It is offered for compatible four-cylinder sequential gas injection systems using the appropriate CNG or LPG configuration.
The rail meters gas in response to commands from a matching autogas ECU. Select the injector version, electrical driver, operating pressure and nozzle configuration together. Four channels alone do not establish compatibility with every four-cylinder engine.
Technical Specifications
| Item | Specification |
|---|---|
| Product type | Four-channel sequential gas injector rail |
| Coil resistance | 3Ω |
| Body material | Aluminium alloy |
| Internal magnetic tube | Stainless steel |
| Listed operating voltage | DC12V ±10%; confirm the required ECU drive waveform and current limits |
| Listed operating temperature | -20°C to +120°C; confirm applicability to the supplied version |
| Fuel application | CNG or LPG vapor, subject to the selected injector specification |
| Gas connections | Confirm inlet and outlet dimensions from the drawing |
| Operating pressure | Request the permitted range and its pressure reference for the selected model |
| Packaging | Carton; listed quantity of 50 units per carton |
| Listed carton data | 33kg and 0.040m³; confirm weight basis and final shipment dimensions |
How Do You Match the 3Ω Coils?
The ECU must support the injector's electrical characteristics. Confirm the supported injector model, coil resistance, drive waveform and software profile before connecting the rail.
Identify the ECU model and firmware version.
Check the supported 3Ω injector configuration.
Match the electrical connector and terminal assignment.
Confirm the required current limits and control strategy.
Use the specified injector profile during calibration where applicable.
Coil resistance does not independently define fuel compatibility. Check both the permitted fuel and electrical requirements for the exact injector version. Browse our CNG and LPG ECU range when selecting the associated controller.
Pressure, Nozzle and Connection Selection
Pressure specifications need a defined reference. Confirm whether the operating range refers to gauge pressure, absolute pressure or pressure difference across the injector. Maximum allowable pressure must be distinguished from test or burst pressure.
Nozzle bore size is a dimension, not a flow rating. Request the bore diameter with units and the corresponding flow data at defined gas, pressure and temperature conditions.
Engine demand: Provide the engine code, displacement, power requirement and intended fuel.
Gas supply: Specify reducer outlet conditions and required injector operating pressure.
Inlet and outlets: Confirm hose inside diameter, fitting dimensions and permitted retention method.
Response data: Request opening and closing times with drive and pressure conditions.
Mounting: Check rail dimensions, orientation and available installation space.
Factory and Processing Images
Calibration and Inspection Data
Calibration must match the rail, reducer and engine. Configure the supported injector type and verify the installation according to the ECU procedure. Read our injector rail and ECU calibration guide for related information.
Inspection records should identify the tested injector version. Where required, request channel flow-balance results, response-time conditions and leakage-test criteria. These records should correspond to the supplied model or batch.
Frequently Asked Questions
Can this rail replace any four-cylinder gas injector rail?
Replacement requires an electrical, mechanical and calibration match. Compare coil resistance, flow characteristics, operating pressure, connectors, mounting dimensions and ECU support before selecting it.
Is a 3Ω injector only suitable for CNG?
No fuel-specific rule follows from resistance alone. Fuel compatibility depends on the complete injector specification. Match the selected version to the intended CNG or LPG vapor system.
Can I install a 2Ω version without changing the ECU settings?
Do not assume that different coil versions are interchangeable. Confirm ECU driver support and the required injector profile before changing resistance or injector type.
Can the rail be cleaned or dismantled?
Service procedures depend on the exact rail design. Use only the manufacturer's approved cleaning, repair and verification procedure. Do not assume that disassembly preserves the original calibration.
Does rough idle mean the injectors have failed?
Rough idle requires diagnosis of the complete system. Pressure, filters, sensors, wiring, calibration and engine condition can also affect operation. Check the cause before replacing the rail.
Installation and Related Components
Installation requires the specified fittings, mounting and wiring arrangement. A qualified installer should verify connection security, leakage and channel operation before completing calibration.
The reducer and injectors must provide a matched fuel-delivery configuration. View our gas pressure regulators when identifying supporting components.
Request a Four-Channel Injector Rail Quotation
Send the engine and ECU details with your inquiry. Include the intended fuel, required 3Ω version, operating pressure, flow requirement, fitting dimensions and quantity. Contact us to confirm the injector model, technical data and quotation.
