: Maintaining liquid form allows for more accurate mixture control than vapor systems.
Here are three specific reasons unique to Vialle LPI:
LPG is heavier than air. It will pool in low-lying areas such as service pits. Always service the vehicle in a well-ventilated space equipped with a floor-level gas detection system.
: A dedicated help guide for diagnosing misfires, gas smells, and ECU communication errors. ✅ Notable Advantages
: Injecting LPG as a liquid avoids the power loss typically associated with vapor-based systems, as the inlet system remains free of venturi throttles.
: Designed to open against high system pressure, these injectors allow for highly accurate fuel metering and prevent damage from backfires.
One of the system’s most elegant features is that it requires only the petrol injection times to regulate the LPi system. Pump speed, gas injection pressure, and injection timing are all calculated from the petrol injection signals, maintaining all original OBD diagnostic functions. The factory programming for each specific vehicle means extensive calibration after conversion is unnecessary.
The system is less sensitive to external temperatures and ambient conditions compared to pressure-controlled vapor systems. Technical Manuals & Resources
The Vialle LPi system is widely regarded as exceptionally reliable, with the notable exception of the fuel pump. In fact, Vialle indicates a lifetime better than most petrol fuel pumps. Common maintenance challenges include:
The LPI pump increases pressure to ensure the fuel remains liquid up to the injector tip. When injected into the intake manifold, the liquid LPG immediately vaporizes, cooling the intake air.
The Vialle LPi system behaves almost identically to a vehicle’s standard petrol injection system. By keeping the LPG in a liquid state throughout the entire process, it provides several distinct advantages:
Sends excess liquid LPG back to the tank, reducing pressure in the line when necessary. II. Operational Principles: Liquid vs. Vapor
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