A dedicated harness connects to the cabin-mounted switch, which displays fuel levels and allows manual switching.
| Pin # | Wire Color | Function | Technical Description | | :--- | :--- | :--- | :--- | | | Red/Black | +12V Battery (Permanent) | Main power supply (fused). | | 2 | Black | Ground (Chassis) | Main ECU ground. | | 3 | Brown/Yellow | RPM Signal (Ignition coil) | Tacho input for engine speed. | | 4 | Green | Lambda Sensor (O2) Input | Connects to pre-cat O2 sensor signal wire. | | 5 | Yellow | Changeover Switch (Data TX) | Transmit line to dashboard switch. | | 6 | White | Changeover Switch (Data RX) | Receive line from dashboard switch. | | 7 | Blue/Red | Water Temperature Sensor (Reducer) | Measures vaporizer temp (cold start lockout). | | 8 | Grey | Gas Pressure Sensor Signal | Reads pressure from reducer (0.5-4.5V linear). | | 9 | Orange | Petrol Injector Cut (Common Bank 1) | Emulator trigger for injector bank 1. | | 10 | Purple | Petrol Injector Cut (Common Bank 2) | Emulator trigger for injector bank 2. | | 11-14 | Various | LPG Injector Drivers (Channels 1-4) | Pulsed ground signals to gas injectors. | | 15 | Blue | Tank Solenoid (+) | +12V output to open tank valve (ECU controlled). | | 16 | Green/White | O2 Heater Ground (Optional) | For specific O2 emulation setups. | landi renzo omegas wiring diagram