Injectors; Fuel Filler Cap - Suzuki F6A Service Manual

1
4
1. FILTER
2. SOLENOID COIL
3. BALL VALVE
4. INJECTOR TERMINAL
+12V
(VIA RELAY)
INJECTOR #1
BR/B
1 1#
BR 10 2#
BR/W
2 3#
B/BL
B
COLOR CODE
B – BLACK
BR – BROWN
W – WHITE
BL – BLUE
100
2
3
ECM

Injectors

The injector is a device which injects fuel in the delivery
pipe into the intake manifold under control of the ECM, and
uses an MPI (multi–point injection) system, whereby fuel
is injected into the manifold of each cylinder. In the injector
operation, the injector valve opens when the coil is electri-
fied, and closes when power is cut off.
Since the lift amount and fuel pressure in the delivery pipe
when the valve is open are always fixed, the injected fuel
amount is determined by the valve opening time, that is,
the duty time of the injectors.
One of the injector terminals is always supplied with bat-
tery voltage from the main relay when the ignition switch is
ON, and the other is connected to the ECM separately for
each injector from #1 through #3.
Since fuel injection controlled uses a sequential system,
each inductor operates separately, and when the injector
terminal of the corresponding ECM is grounded, fuel is
injected.
The voltage of each injector terminal of the ECM is approx-
imately 0 V during fuel injection and at other times is the
battery voltage.
Injector coil resistance: 14.5 Ω (20 C)

Fuel Filler Cap

The fuel filler cap is a threaded type used to prevent fuel
spray–out.
A ratchet is provided on the screw part, and when the cap
is attached by turning clockwise, the ratchet makes a loud
clicking noise. At this time, the gasket of the cap is pressed
against the filler neck flange, and the fuel intake opening is
sealed. By this means, the fuel tank is sealed against the
leakage of fuel vapor.