Fuel Cutoff Module for LPG/CNG Vehicles
The fuel cutoff module is an electronic device for dual-fuel LPG/CNG vehicles. It automatically controls the gasoline pump, deactivating it when gas is in use to prevent total/partial damage to the gasoline pump. Compatible with 4th and 5th generation conversion kits. Includes installation advisory.
Key Features
- Intelligent fuel system protection: Automatically deactivates the gasoline pump when the vehicle operates in LPG/CNG mode, preventing it from running dry and avoiding premature wear.
- Easy installation and versatility: Compatible with a wide range of vehicles. Its connectors and harnesses allow for quick and secure connection to the electrical system.
- Compact and durable design: Robust casing that easily fits into any space in the engine compartment.
- Smooth transition between fuels: Precise 35-second cutoff time that ensures a fluid change between operating modes.
- Failure safety system: If anomalies are detected, the module stops gasoline operation, protecting the fuel pump and preventing costly repairs. It is better to prevent by stopping the system than to allow faulty operation that causes greater damage.
Operation
- Installation: A trained technician connects the device following the instructions in the quick start guide or user manual.
- Normal operation: When starting the vehicle in gasoline mode, the module receives the signal from the ECU and initiates the 35-second cutoff time. After this period, the system automatically transitions to LPG/CNG mode, deactivating the gasoline pump.
- Emergency start: If the vehicle starts directly in gas mode (emergency start), the module automatically detects this and keeps the gasoline pump off from the beginning, ensuring its protection.
Technical Specifications
Power and Switching
| Specification | Value |
|---|---|
| Operating voltage | 12 VDC |
| Nominal operating voltage | 13.8 VDC ±10% |
| Absolute voltage range | -20V to 65V |
| Nominal switching capacity | 15A continuous / 30A maximum for 15 seconds |
| Cutoff time | 35 seconds ±0.5% |
Wiring
| Specification | Value |
|---|---|
| Pump cable gauge (green and white) | 14 AWG / 1.5 mm² |
| Control cable gauge (black and blue) | 22 AWG / 0.35 mm² |
| Pump cable length (green and white) | 30 cm ±5% |
| Control cable length (black and blue) | 110 cm ±5% |
Dimensions and Protection
| Specification | Value |
|---|---|
| Size | 35 mm (width) × 60 mm (length) × 20 mm (height) |
| Approximate weight | 95 g |
| Reverse polarity protection | Yes |
| IP protection rating | IP68 |