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24
ELECTRONIC FUEL INJECTION - AFC
The
Porsche
912
E
is
Before we describe this unit
The
accel
era
tor cable is in two
ment
behind the rear panel and is accessible when the cover to the guide channel is removed.
Construction and funct
2
Principles of Operation
The amount of fuel that is to
motor.
The
injector sequence is determi ned by
The fue
l
required for cold
Warm-up
en
richment of t
temperature
sensor
I in the in
head.
Fuel m ixture
enrichment
equipped
with a motor that has a air flow controlled electronic fuel injection
in
detail, a few words about the accelerator
parts.
The connector (arrow) is located within the engine compart
ion
of the ATC injection
be used
is
determined by
the igni
starting
is
injected
he
fuel mixture
is
t
ake-air
Senso
for full load condi
The component parts
1 Fuel Tank
2 Fuel Pump
3 Fuel Filter
4 Cold Start Valve
5 Fuel Injector
6
6 Pressure Regulator
7 Auxiliary Air Regulator
8 Throttle Switch
9 Air Filter
10 Temperature Sensor II
11
Battery
12 Ignition Switch
A
Intake-air Sensor
B
Throttle valve
C
Air
Sensor Flap
o
Control Unit
the
vo
lume
tion distribu
tor
breaker
by
t he
electro-magnetic cold start valve.
via t
he
au
x
iliary
air regulator in conjunction with the
r
housing and
t
he
temperature
t ions
is
by
means
of a throttle switch
6
cable.
of
intake
air and the speed of the
points
.
sensor II in the cylinder
.
.
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