CNG LPG Rail Injector for Sequential Injection Systems
This gas injector rail meters fuel under ECU control in compatible sequential injection systems. Listed coil resistance options are 1 Ω, 3 Ω and 6 Ω. Select the variant according to the ECU driver requirements and gas-system configuration.
CNG and LPG suitability must be confirmed for the ordered variant. Check fuel compatibility, operating pressure, injector calibration and connection dimensions before installation or replacement.
Technical Specifications
The supplied variant determines the applicable specifications. Confirm the following listed values against the product technical sheet.
| Product | Sequential gas injector rail |
|---|---|
| Listed Color | Black and gray |
| Resistance Options | 1 Ω, 3 Ω or 6 Ω; confirm tolerance and measurement temperature |
| Listed Voltage | 12 V DC ±10%; confirm injector drive requirements |
| Listed Operating Pressure | 0.5–2.5 bar; confirm whether gauge, absolute or differential pressure |
| Listed Frequency | 150 Hz; request pulse duration, duty cycle and test conditions |
| Engine Configurations | 4-, 6- or 8-cylinder applications with the appropriate injector and rail arrangement |
| Warranty | 1 year, subject to the agreed warranty conditions |
Test-pressure limits are different from continuous operating ratings. Request documented pressure limits, test methods and acceptance criteria. Do not use a proof or ultimate pressure value as the normal operating pressure.
Which Resistance Should You Choose?
Coil resistance must match the ECU's injector driver. Do not replace a 1 Ω, 3 Ω or 6 Ω variant solely because the connector or rail body looks similar.
Electrical: Confirm resistance, required current control and drive strategy.
Connections: Verify connector type and wiring compatibility.
Gas delivery: Match nozzle configuration, operating pressure and required flow.
Calibration: Confirm the ECU supports the selected injector characteristics.
Replacement requires calibration review. Read our injector rail and ECU calibration guide for related information.
Will It Match Your Regulator and Engine?
Regulator compatibility depends on fuel, pressure and capacity. An AT12 model name alone does not establish compatibility. Confirm the exact regulator variant and outlet characteristics against the injector requirements.
Required fuel: CNG or LPG
Regulator model and outlet pressure range
Engine code, cylinder count and rated power
Injector channel count and number of rail assemblies
Pressure and temperature sensor specifications
Gas hose, filter and fitting requirements
The injector rail is only one part of the conversion system. Use our conversion kit component guide to check the complete configuration.
What Test Information Should Buyers Request?
Frequency alone does not establish flow accuracy or fuel efficiency. Request measured performance under defined electrical and pressure conditions.
Flow: Test gas, nozzle size, pressure, temperature and measurement unit.
Consistency: Channel-to-channel flow variation and acceptance tolerance.
Response: Opening and closing times with the electrical drive conditions stated.
Leak testing: Test medium, pressure, duration and acceptance limit.
Traceability: Product reference, batch or serial number and inspection date.
Approval documents should identify the purchased variant. Review our certification information and request applicable product records.
Factory Processing and Assembly
These photographs show factory processing and assembly areas. Request product-specific inspection records when evaluating the injector rail.
Frequently Asked Questions
Can this rail replace another brand?
Cross-brand replacement requires compatibility checks. Compare resistance, driver requirements, flow characteristics, connectors and mounting dimensions. Do not assume direct interchangeability.
Can it be used on taxis and fleet vehicles?
Fleet suitability depends on the application and operating conditions. Confirm fuel, engine demand, component ratings and maintenance requirements. High-mileage durability claims require supporting test or service data.
Does one rail support every four-, six- and eight-cylinder engine?
The injector arrangement must match the engine configuration. Confirm channel count, rail quantity and ECU support. Cylinder count alone does not establish compatibility.
What should be checked if the engine runs unevenly?
Uneven running can have several causes. Qualified technicians should check engine condition, gas pressure, filters, wiring, sensors, injector operation and calibration before replacing parts.
Is a suspected gas leak a cleaning issue?
A suspected leak requires professional inspection before further gas-system use. Do not treat it as routine nozzle cleaning. Follow the system manufacturer's fault and service instructions.
What maintenance schedule applies?
Follow the instructions for the installed rail and filter. Request approved inspection intervals and service methods. See our gas system maintenance guide for background information.
What does the warranty cover?
Confirm the one-year warranty terms in the quotation. Request the coverage, exclusions and claim process for the ordered product.
Request a Gas Injector Rail Quotation
Send the ECU model and application details for a matched offer. Include fuel type, required resistance, engine code, cylinder count, existing injector photographs and order quantity.
The quotation should identify the supplied configuration. Confirm rail quantity, nozzle specifications, accessories, price, warranty and delivery lead time.
