STAG-4 Q-BOX controller for sequential gas injection has been designed for vehicles with 4-cylinder engines with multiple fuel injection. The unit is equipped with all the functions available in our well-known controllers: STAG-4 and STAG-300 series. The new controller offers an attractive body shape and optimized dimensions to make
installation in the engine compartment easier. The new design helps to optimize the arrangement of functional components, for faster and easier connection to the harness and fitting at any angle. The construction of the controller is based on a modern, high-efficiency 32-bit processor, which allows the precise dosage of LPG or CNG improving the response to changing engine parameters.

STAG-4 Q-BOX is provided with extended self-diagnostics and tools for the identification of faults in installation. The new hardware platform makes possible to add new functions, and further extend or improve the auto-adaptation capabilities.

BENEFITS:
• new compact body for easier and faster installation,
• new platform based on a 32-bit microprocessor dedicated for automotive solutions,
• hardware solutions for improved protection of data and controller development options,
• integration with a new diagnostic application and its new, ergonomic user interface,
• extended diagnostic functions,
• self-testing capabilities for actuating components,
• excellent precision in LPG and CNG dosing and measurements of petrol injection time (resolution: 5 microseconds),
• wide range of operating temperatures (-40ºC +125ºC),
• extra petrol injection function,
• extended functionality for managing oxygen sensors,
• works with LED-300, LED-300/400 and LED-400 switches.