Because fuel is in a liquid state, it can be metered with much higher accuracy, allowing the LPG system to closely mirror the performance of the original petrol injection system.
This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later.
Slowly open the tank service valve. Prior to starting the engine, spray all disturbed joints with a certified gas leak detection spray (bubble solution). Watch closely for any foaming. Fix any leaks immediately before restoring electrical power. 6. Technical Specifications and Wiring References Pinout Configuration Matrix (Typical Vialle LPE-7 Type ECU) Pin Number Wire Color Signal Function Target Destination / Connection Type Pin 1 Red / Black Main Battery Power (+12V) Vehicle Battery positive via 15A inline fuse Pin 2 System Ground (0V) Chassis grounding point / Engine block Pin 5 Switch Communication Dashboard fuel selector switch module Pin 12 RPM Signal Camshaft/Crankshaft sensor or ignition coil negative Pin 18 Injector 1 Intercept Input Signal coming out from petrol ECU for cylinder 1 Pin 19 Grey / Black Injector 1 Drive Output Output connection directly to LPG injector 1 Pin 28 Tank Pump Power Supply Outputs variable PWM voltage to tank pump relay General System Specifications Operating Voltage: 10V DC to 16V DC Maximum Current Consumption (Pump Active): 12 Amps
A specific Technical Help Guide is available for identifying specific conversion faults. lpi vialle technical manual top
One of the most common failure points requiring tank inspection.
Do not trust generic forums. Do not guess with high-pressure LPG. Download or purchase the legitimate Technical Manual Top , study the hydraulic flow chart, and keep a copy on your diagnostic tablet. Your reputation—and your safety—depend on it.
The Vialle LPE (Electronic Control Unit) acts as a high-speed translator. Because fuel is in a liquid state, it
The system reads engine speed and load to fine-tune pump speed control, ensuring sufficient fuel volume under wide-open throttle conditions.
Whether you are a workshop foreman, a mobile LPG technician, or a serious DIY converter, accessing and understanding this manual is non-negotiable. This article provides a deep dive into what the "Technical Manual Top" is, why it is the definitive guide for Vialle systems, and how to leverage its contents to solve real-world problems.
Once the purge cycle completes and engine parameters (like coolant temperature) are met, the LPE seamlessly shuts off the gasoline injectors and activates the LPG injectors. If you share with third parties, their policies apply
Vialle LPi System Overview and Benefits | PDF | Fuel Injection - Scribd
Adhering to automotive electrical codes to maintain the integrity of the vehicle's electronic systems.
Technical manuals like the Vialle LPi LPE-7 Assembly Manual provide strict guidelines for electrical integration: