Understanding Fuel Pump Wiring (Relay ECU Signal) 💡 A clear look at how a fuel pump circuit is wired using a relay and an ECU signal. This setup ensures proper power delivery and control for optimal engine performance. Key Components: Battery: Provides the initial power source. Fuse: Protects the circuit from overcurrents. Relay: An electromagnetic switch that allows a low-power ECU signal to control the high-power fuel pump circuit. ECU (Engine Control Unit): Sends the signal to activate the r
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