Integra L4-1590cc 1.6L DOHC FI (1987)
Fuel Injector Resistor: Description and Operation
Injection timing, which controls the opening and closing intervals, must be accurate since it determines the air/fuel mixture ratio. For ideal injector
response, it is necessary to shorten current rise time when voltage is applied to the injector coil. Therefore, the number of windings in the injector coil is
reduced to reduce inductance in the coil. This lowers coil resistance, allowing a large amount of current to flow through the coil. As a result, the amount
of heat generated is high, which affects durability of the coil. Flow of current to the coil is restricted by a resistor installed in series between the electrical
power source and the injector coil. The resistor helps prevent damage to the injector coils, while allowing faster response time.
