Saturated Injectors aka High Impedance Injectors

Impedance typically 12-16ohms. At 12volts, this is a draw of ~1-.75 amps. The low current helps keep the injectors cool.

The saturated injectors see a steady 12volts, and ground is modulated to produce pulsing.

These are the stock style of injector for OBD1 and up hondas, so no resistor box is needed.