Vanagon F4-1915cc 1.9L (Water Cooled) (1983)
Fuel Injector: Description and Operation
Fig. 9 Fuel injector
The injector is mounted between the intake manifold and the fuel rail. The injector receives the pulse signal from the control unit, and injects the fuel
toward the intake valve in the cylinder head. The injector operates on the solenoid valve principle. When a driving pulse is applied to the coil
incorporated into the injector, the plunger is pulled into the solenoid, thereby opening the needle valve for fuel injection, Fig. 9. The quantity of
injected fuel is in proportion to the duration of the pulse applied from the control unit.