4903523 Electronic Fuel Controller (Fuel Control Actuator, FCA)
We mainly deals in Dongfeng truck accessories (engine/axle/gearbox/cabin), especially Dana axle accessories and Cummins engine parts (4BT, 6BT, 6CT, 6L, ISBE, ISDE, ISLE,ISF2.8, ISF3.8, NTA855, KTA19,KTA38, KTA50, M11, ISM, etc.) with great advantages
Product Descreiption
1. Specifications
- Type: Electronic Fuel Control Actuator (solenoid‑operated, common‑rail fuel pressure regulator)
- Application: Cummins ISC / ISL / ISL9 / QSL 8.9L diesel engines (EPA13, 2008–2016)
- Fuel System: XPI (High‑Pressure Common Rail)
- Operating Voltage: 12 VDC (vehicle electrical system)
- Coil Resistance: 10–50 Ω (typical, at 25°C)
- Weight: approx. 0.5 kg (1.0 lb)
- Material: Aluminum housing, steel valve, solenoid coil
- Connector: 2‑pin electrical connector (OEM style)
2. Installation Location
- Mounted directly on the high‑pressure fuel pump (common‑rail pump) of the Cummins ISC/ISL engine
- Positioned at the inlet or outlet of the high‑pressure pump, integrated into the fuel system housing
- Accessible from the engine side, near the fuel filter and injection pump assembly
3. Function
- Regulates common‑rail fuel pressure: Receives PWM signals from the Engine Control Module (ECM/ECU) and adjusts the fuel flow to maintain precise rail pressure under all loads and speeds
- Controls fuel injection quantity: Works with the ECM to meter the exact amount of fuel delivered to the injectors, optimizing power, fuel economy, and emissions
- Solenoid‑driven valve: Converts electrical signals from the ECM into mechanical movement to open/close the fuel control valve
- Ensures smooth engine operation: Stabilizes fuel pressure during acceleration, deceleration, and idle; prevents rail pressure spikes or drops
