STAG-300-6 ISA2 LPG CNG ECU Control Unit Module Injection Controller

STAG-300-6 ISA2 LPG CNG ECU Control Unit Module Injection Controller is an advanced gas system controller designed for precise management of LPG and CNG injection in multi-point engines. This component from the Computers and Controllers category ensures stable engine operation, correct gas fuel dosing, and optimal utilization of the system's capabilities. It is a practical solution for users seeking proven electronics for an existing gas system.

Specifications and technical data

• SKU: STAG-300-6
• Condition: Used
• OEM Part Number: STAG-300-6
• Substitutable numbers: STAG-300-6, LPG, CNG, Control Unit, BG
• Category: Control Modules

Purpose and function of the gas controller

The presented controller is the central module responsible for controlling LPG and CNG injection in modern gas systems. It analyzes signals from sensors, communicates with the factory engine ECU, and based on this, controls the opening time of the gas injectors. This makes it possible to maintain the correct mixture, smooth engine operation, and proper response to load and changing driving conditions.

A solution of this type is used in vehicles where precise synchronization of the gas system with the petrol system is required, which translates into stable performance and predictable vehicle behavior across the entire rev range.

Key technical advantages

The STAG family controller has been designed as an electronic module with extensive configuration capabilities, allowing parameters to be matched to a specific engine and system type. In practice, this means the ability to:

• precisely tune gas injection maps to the engine's characteristics,
• maintain correct transitions between petrol and gas supply,
• maintain stable idle speed under various loads,
• better combustion control in urban and extra-urban conditions.

As a result, the controller provides a solid foundation for configuring LPG/CNG systems in both daily-driven cars and vehicles subjected to mechanical modifications.

Application in LPG and CNG systems

The module is designed to work with gas systems based on sequential injection, where precise control of each cylinder is required. It performs well in configurations where it is important to maintain smooth engine operation, reduce jerking, and correctly map the petrol supply characteristics to gas fuel.

Due to its design and configuration capabilities, the controller can be used in both standard applications and projects where flexibility of settings and the possibility of subsequent tuning to individual user requirements are important.

Condition, verification, and selection of the appropriate controller

The offered unit comes from the secondary market, which for many users represents a favorable compromise between cost and functionality. In the case of automotive electronics, however, it is crucial to properly match the module to the specific vehicle and system type. Before purchasing, it is worth comparing the markings with your existing controller or system documentation to ensure full compatibility with the wiring harness and software.

If you are considering installing a used gas controller or other electronic components, the following guide may be helpful: check when it is worth choosing used controllers and electronic modules. You will find practical tips there regarding the selection of ECUs, comfort modules, and sensors, which will facilitate making an informed purchasing decision.

Support for modernization and tuning

In vehicles subjected to mechanical modifications, a properly selected gas system controller is an important element of the entire project. It allows for adjusting gas supply parameters to changes in the intake system, exhaust system, or boost level. For those planning a wider range of modifications, the following article may be useful: discover the best used parts for tuning your car, which describes how to reasonably use components from the secondary market.

Related products and category

If you are assembling a larger set of electronic components for your car – for example, additional control modules, relays, or other systems managing engine operation – it is also worth browsing other items in the Computers and Controllers category. This will make it easier to select a coherent set of components that will work with the gas system and the vehicle's factory electronics.