Top — Lpi Vialle Technical Manual

: The changeover is complete, and the engine is safely running on liquid LPG injection. 🔍 Diagnostic and Troubleshooting Framework

The system is less affected by ambient temperatures and gas composition compared to traditional systems.

Low fuel pressure detected during standard operation, forcing an automatic fallback to petrol. 3. Maintenance and Service Intervals

In the Vialle system, the regulator serves a different purpose than in vapor systems. lpi vialle technical manual top

The LPI Electronic Control Unit (ECU) operates as a slave to the vehicle’s original Engine Control Unit (OEM ECU). It reads the injector opening times commanded by the petrol ECU, blocks the petrol injectors using an internal emulation resistor network, and fires the corresponding Vialle LPG injectors with a calculated correction factor. General Pinout Architecture (Vialle LPE-7 Type)

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Senses when the vehicle key is in the "On" position to awaken the LPI ECU. : The changeover is complete, and the engine

The "Top" manual explains how the thermo-pressure relief valve interacts with the tank multi-valve—a common confusion point.

Install an LPG-compatible fluid pressure gauge (rated up to at least 25 bar) inline to the service port located on the fuel rail assembly.

Remember: LPI is a high-performance, high-pressure system. Treat it with respect, follow the to the letter, and you will enjoy a reliable, efficient, and powerful Autogas installation for hundreds of thousands of kilometers. It reads the injector opening times commanded by

The Vialle LPi system does not standalone; it operates as a slave system completely subordinate to the vehicle's factory powertrain control module (PCM). The LPi Coupler / LPE Computer

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.

+--------------------------------------------------------+ | LPG Tank | | [ Submerged PTC Pump ] ---> High-Pressure Feed Line --+---> (Engine Bay) | [ Return Pressure Reg ] <--- Fuel Return Line <--------+--- [ Fuel Rail ] +--------------------------------------------------------+ | V [ LPi Injectors ] 1. The Submerged Liquid LPG Pump