Datsun 1980 200SX Service Manual page 97

Fuel
Injection
Control
ENGINE
FUEL
FUEL SHUT OFf
Fuel
shut off
is accomplished
dur
ing
deceleration when the engine
does
Automatic transmission models
3 000
I
S
2
600
e
1
2 200
1
S
I
9
1 800
1 400
1
I
oooi
Deceleration from zone
A
Deceleration from
rone
B
Deceleration from
zone
e
Engine rpm increased in
order
of e S and
A
Idle switch ON downhill
driving etc
SEF095
not
require fuel
@
@
@
Cooling
water
temperature
at
80 C 1I6 F
Fuel is shut off and fuel
is
injected again in
tone
Ci
Fuel is shut off and fuel is
injected again
in
zone
e
Fuel is
not
shut off
Fuel
is not shut ofT in
zones
C and B in
zone
A
fuel
is
shut
off
ALTITUDE COMPENSATION
California models
The
density
of ail becomes thin
in
proportion
to
the altitude
so
that
the air fuel ratio becomes riche t
high
altitude
The altitude
compensator
is
a
device
to
correct air
fuel
mixture to
an
optimum
ratio
automatically
EF l0
The
graph
below shows the fuel
shut off
tange
Manual
n
models
3 OC
2 600
s
e
2 200
0
0
Il
0
1
800
1 400
1 000
Deceleration from
zone
A
Deceleration from
zone
B
1
D
from
zone
B2
Deceltration from
zone
e
Engine
rpm
increased
in
order
orue S2
Bl
and
A
Idle switch ON downhill
driving etc
@
@
@
@
Cooling
water
temperature
at
80 C 1I6
F
Fuel is
shut off and fuel is
injected again in
zone
C
Fud is shut off and fuel
is
injected again
in
zone
en
Fuel
is Dot shut
off
Fuel is
not
shut off
Fuel is
not
shut off in
zones
en
B2
and Bl in
z one
A
fuel
is
shut off