The system represents a significant shift from traditional vapor-based LPG conversions by injecting fuel in its liquid state directly into the intake manifold. This technical overview, derived from official assembly and technical manuals, details the system’s architecture, core components, and operational logic. 1. System Architecture and Operation
A cabin-mounted interface (often a Combi-switch) that allows manual switching and provides tank level readouts. 3. Electrical and Wiring Specifications
The system utilizes a specialized LPE (LPi Control Unit) that mirrors the vehicle’s original petrol ECU strategy. It converts petrol injection timing into corresponding LPG timing, ensuring features like RPM limits and fuel shut-off during deceleration are preserved. 2. Core Technical Components lpi vialle technical manual top
By injecting liquid LPG at the inlet valve, the system benefits from a "phase-change cooling effect" that prevents overheating and maintains high volumetric efficiency.
High-priority grounding is typically required at the front of the engine using M6 nuts. The system represents a significant shift from traditional
Unlike vapor injection systems that require a vaporizer or "reducer" to heat the gas, the Vialle LPi system maintains the LPG in liquid form throughout the entire fuel cycle.
Maintains a constant system pressure of 5 bar above the current tank pressure to prevent vapor bubbles from forming in the lines. It converts petrol injection timing into corresponding LPG
These are mounted directly into the intake manifold, often using specific adapters to ensure the correct discharge angle toward the intake valves.
A standard Vialle LPi installation consists of several critical hardware units integrated into the vehicle's fuel and electrical systems:
Technical manuals like the Vialle LPi LPE-7 Assembly Manual provide strict guidelines for electrical integration:
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