Wiring Method:
Set of 4 wires:
1. Red wire connects +12V power supply.
2. White wire connects headlight switch + 12V.
3. Yellow line connects the ignition switch.
4. Black wire connects the battery or the car shell.
Set of 2 wires:
1. Green wire connects turbo boost sensor line.
2. The black wire connects the ground wire.(The last line is an extra line for connecting similar products. )