Ballast Resistor (BAL4)

The Link ECU Ballast Resistor BAL4 is engineered to safely interface low-impedance fuel injectors with ECU outputs. By dropping supply voltage to injectors, this resistor prevents overheating and damage to both the injector coils and ECU driver circuits. Essential when retrofitting older or high-performance low-impedance injectors into modern engine management systems, the BAL4 ensures reliable injector operation while maintaining precise fuel delivery. Compact design allows flexible mounting within the engine bay, making it a practical solution for tuners working with diverse injector configurations across performance applications.