Fuel Injectors

A fuel rail links the fuel pressure regulator with the fuel injectors. Each cylinder is provided with a solenoid-operated injector which sprays fuel toward back of each intake valve. Each injector is energized through the ignition coil and grounded through the ECU to complete the circuit.

Each injector is linked to a resistor to reduce operating voltage to 3 volts and to protect injectors from power surges. Resistors are located in a single unit mounted on right side of firewall.

The ECU controls the length of time each injector is open. The "OPEN" time of the injector governs the amount of fuel delivered. The injectors deliver 1/2 the amount of fuel required each crankshaft revolution.