Lpi+vialle+technical+manual Today
Vialle was a pioneering Dutch manufacturer founded in 1945, known for developing some of the most advanced LPG systems in the world. They were particularly famous for their LPI technology used in both aftermarket conversions and factory installations (e.g., on certain GM, Ford, and Mazda engines). In recent years, the Vialle brand and technology have been integrated into the Prins product portfolio, but many vehicles still operate with legacy Vialle LPI systems.
"Due to the incompressibility of liquid LPG, the injector opening time at low loads (2–4 ms) must be corrected for battery voltage and fuel temperature."
Here is a typical diagnostic workflow extracted from the official LPI Vialle technical manual: lpi+vialle+technical+manual
Symptom: Engine starts on petrol but fails to switch to LPG; switch beeps three times.
From the manual – Diagnostic Tree F1:
Vialle no longer exists as an independent brand; their IP was acquired by Prins. Therefore, official Vialle manuals are archived in:
Critical note: There are three distinct generations of manuals: Vialle was a pioneering Dutch manufacturer founded in
Always match the part number on your injector rail (e.g., Vialle 9015-01) to the manual.
Vialle (a Dutch company, later part of Prins) was one of the few to mass-produce LPI systems. Their technical manuals are legendary in LPG forums — not because they’re fun to read, but because without them, you’re lost. "Due to the incompressibility of liquid LPG, the
The Vialle LPi technical manual covers:
