Lpi+vialle+technical+manual May 2026
The Ultimate Guide to the LPI Vialle Technical Manual: Diagnostics, Calibration, and Repair
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LPI (Liquid Phase Injection)
keeps propane liquid right up to the injector. It sprays directly into the intake port like a high-end gasoline direct injector, but with propane. Benefits? lpi+vialle+technical+manual
- LPG Tank: Fitted with a multi-valve and a sending unit (fuel level sensor for LPG).
- High-Pressure Pump (Vialle Spec): Submerged in the tank or inline, producing 5–8 bar of pressure.
- Pump Control Unit (PCU): Regulates pump speed based on engine demand.
- Liquid Injectors: Specific to Vialle (often the "Silver" or "Vialle II" series). These are solenoid-type and must never run dry.
- Vialle LPI ECU: A standalone unit that intercepts petrol injector signals and mimics them for LPG.
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Every 60,000 km:
One page in the Vialle LPI manual warns: “If engine coolant temperature exceeds 95°C, LPI system will disable liquid injection and revert to vapor start mode.” Why? Liquid propane in a hot fuel rail can vaporize prematurely — causing vapor lock. Most vapor systems never deal with this. LPI engineers had to solve chemistry and fluid dynamics. The Ultimate Guide to the LPI Vialle Technical
Prins
Vialle no longer exists as an independent brand; their IP was acquired by . Therefore, official Vialle manuals are archived in: LPG Tank: Fitted with a multi-valve and a