Modern diesel engines rely on advanced fuel injection technology to maximize performance, fuel efficiency, and emissions control. The Common Rail Injection System is at the heart of this transformation, replacing older mechanical systems with precise, high-pressure, computer-controlled fuel delivery. How It Works: Key Components 1️⃣ High-Pressure Pump (5) The pump draws diesel from the fuel tank and compresses it to extremely high pressures (sometimes up to 2,500 bar or more!). It’s mechanically driven by the engine, ensuring a steady supply of pressurized fuel. 2️⃣ Common Rail (2) This is a rigid, reinforced tube or ‘rail’ that acts as a reservoir, storing fuel at high pressure. The common rail supplies all injectors with the same fuel pressure at any given moment, which means every cylinder gets precisely what it needs. 3️⃣ Injectors (4) These are electrically controlled valves, one for each cylinder. The engine control unit (ECU) tells each injector exactly…