1977 DATSUN PICK-UP transmission
[x] Cancel search: transmissionPage 23 of 537
EE322
Fig
ET
15
Checking
diltribu
tor
point
gap
AIR
GAP
California
models
For
inspection
procedures
and
reference
data
refer
to
the
topic
Air
Gap
in
Section
EE
page
EE
29
DISTRIBUTOR
Check
centrifugal
advance
unit
for
loose
connection
or
improper
opera
tion
If
it
is
not
operating
properly
the
problem
may
be
due
to
a
sticky
spring
or
excessively
worn
parts
This
operation
needs
a
distributor
tester
For
inspection
procedures
and
ref
erence
data
refer
to
relative
topic
under
Distributor
in
Section
EE
If
vacuum
advance
mechanism
does
not
properly
operate
check
for
the
following
items
and
correct
the
prob
lem
as
required
1
Check
vacuum
inlet
for
signs
of
leakage
at
connection
If
necessary
retighten
or
replace
2
Check
vacuum
diaphragm
for
air
leak
If
necessary
replace
diaphragm
3
Inspect
breaker
plate
for
smooth
movement
If
plate
does
not
move
smoothly
this
condition
could
be
due
to
sticky
steel
balls
If
necessary
replace
break
er
plate
assembly
IGNITION
WIRING
Use
an
ohmmeter
to
check
resist
ance
of
secondary
cables
Disconnect
cables
from
spark
plugs
and
install
a
proper
adapter
between
cable
and
spark
plug
Remove
distributor
cap
and
secondary
cables
as
an
assembly
Do
not
remove
cables
from
cap
Check
resistance
of
one
cable
at
a
time
Connect
ohmmeter
between
spark
plug
adapter
and
corresponding
elec
trade
inside
cap
If
resistance
is
more
than
30
000
ohms
remove
cable
from
Engine
Tune
up
cap
and
check
cable
resistance
only
If
resistance
is
still
more
than
30
000
ohms
replace
cable
assembly
EF125
Checking
high
tension
cable
CHECKING
DISTRIBUTOR
CAP
ROTOR
AND
CONDENSER
Note
This
operation
is
to
be
per
formed
while
checking
distributor
points
Inspect
distributor
cap
for
cracks
and
flashover
External
surfaces
of
all
parts
of
secondary
system
must
be
cleaned
to
reduce
possibility
of
voltage
loss
All
wires
should
be
removed
from
distrib
utor
cap
and
coil
so
that
terminals
can
be
inspected
and
cleaned
Burned
or
corroded
terminals
indicate
that
wires
are
not
fully
seated
which
causes
arcing
between
end
of
wire
and
ter
minal
When
replacing
wires
in
ter
minai
be
sure
they
are
fully
seated
before
pushing
rubber
nipple
down
over
tower
Check
distributor
rotor
for
damage
and
distributor
cap
for
cracks
CONDENSER
I
Clean
outlet
of
condenser
lead
wire
and
check
for
loose
setscrew
Retighten
if
necessary
2
Check
condenser
with
a
con
denser
tester
Condenser
capacity
0
20
to
0
24
IF
Micro
Farad
Condenser
insulation
resistance
5Mn
Mega
ohms
ADJUSTING
CARBURETOR
IDLE
RPM
AND
MIXTURE
RATIO
Cautions
a
On
automatic
transmission
equip
T
11
ped
models
check
should
be
per
fonned
in
the
D
position
Be
sure
to
engage
parking
brake
and
to
lock
both
front
and
rear
wheels
with
wheel
chocks
b
Keep
your
foot
down
on
the
brake
pedal
while
depressing
the
accelera
tor
pedal
Otherwise
vehicle
surges
forward
dangerously
Notes
a
Do
not
attempt
to
screw
the
idle
adjusting
sc
ew
down
completely
Doing
so
could
cause
damage
to
tip
which
in
turn
will
tend
to
cause
malfunctions
b
If
idle
limiter
cap
obstructs
proper
adjustment
remove
it
To
install
idle
limiter
cap
refer
to
Idle
Limiter
Cap
c
After
idle
adjustment
has
been
made
shift
the
lever
to
the
N
or
P
position
for
automatic
trans
mission
d
When
measuring
CO
percentage
in
sert
probe
into
tail
pipe
more
than
40
em
15
7
in
CO
idle
adjustment
with
CD
meter
Idle
mixture
adjustment
requires
the
use
of
a
CO
meter
especially
for
California
models
When
preparing
to
adjust
idle
mixture
it
is
essential
to
have
the
meter
thoroughly
warmed
up
and
calibrated
I
Check
carburetor
pipes
for
proper
connection
2
Warm
up
engine
until
water
tem
perature
indicator
points
to
the
middle
of
gauge
The
procedure
to
warm
up
engine
is
not
specifically
recom
mended
Either
driving
vehicle
or
oper
ating
engine
at
no
load
will
be
good
3
Make
sure
that
water
tempera
ture
indicator
points
to
the
middle
Further
keep
engine
running
at
about
2
000
rpm
for
about
5
minutes
with
out
applying
load
to
engine
in
order
to
stabilize
engine
condition
Engine
hood
should
be
open
4
Run
engine
for
about
10
minutes
at
idling
speed
During
this
10
minutes
proceeq
as
described
i
steps
5
to
9
below
5
Remove
air
hose
between
3
way
connector
5
way
connector
for
Cali
fornia
models
and
air
check
valve
as
shown
in
Figure
ET
17
Plug
the
dis
Page 24 of 537
r
connected
hose
to
prevent
dust
from
entering
To
air
check
valve
Fig
ET
17
Disconnect
air
hose
from
ojr
check
valve
6
Race
engine
1
500
to
2
000
rpm
two
or
three
times
under
no
load
then
run
engine
for
one
minute
at
idling
speed
7
Adjust
throttle
adjusting
screw
until
engine
is
at
specified
speed
Engine
speed
Manual
transmission
750
rpm
Automatic
transmission
in
D
position
650
rpm
8
Check
ignition
timing
If
neces
sary
adjust
it
to
specifications
This
operation
need
not
be
carried
out
at
1
600
Ian
1
000
miles
service
Ignition
timing
Manual
transmission
120
750
rpm
Non
California
100
750
rpm
California
Automatic
transmission
in
D
position
120
650
rpm
9
At
about
10
minutes
after
engine
is
run
at
idling
speed
adjust
idle
adjusting
screw
so
that
CO
percentage
is
at
specified
level
CO
percentage
Manual
transmission
2
t
I
at
750
rpm
Automatic
transmission
in
D
position
2
t
I
at
650
rpm
10
Repeat
procedures
as
described
in
steps
6
7
and
9
above
so
that
CO
percentage
is
at
specified
level
Check
ing
idle
CO
in
step
9
can
be
carried
out
right
after
step
7
11
Race
engine
I
500
to
2
000
rpm
two
or
three
times
under
no
load
and
make
sure
that
specified
CO
per
centage
is
obtained
Engine
Tune
up
12
Connect
air
hose
to
air
check
valve
If
engine
speed
increases
readjust
it
to
the
specified
speed
with
throttle
adjusting
screw
CO
Idle
adjustment
without
CO
meter
If
CO
meter
is
not
available
the
following
procedures
may
be
used
I
Check
carburetor
pipes
for
proper
connection
2
Wann
up
engine
until
water
tern
perature
indicator
points
to
the
middle
of
gauge
The
procedure
to
warm
up
engine
is
not
specifically
recom
mended
Either
driving
vehicle
or
oper
ating
engine
at
no
load
will
be
good
3
Make
sure
that
water
temperature
indicator
points
to
the
middle
Further
keep
engine
running
at
about
2
000
rpm
for
about
5
minutes
without
applying
load
to
engine
in
order
to
stabilize
engine
condition
Engine
hood
should
be
open
4
Run
engine
for
about
10
minutes
at
idling
peed
During
this
10
minutes
proceed
as
described
in
steps
5
to
9
below
5
Remove
air
hose
between
3
way
connector
5
way
connector
for
Cali
fornia
modeis
and
air
check
valve
shown
in
Figure
ET
17
Plug
the
dis
connected
hose
to
prevent
dust
from
entering
6
Race
engine
1
500
to
2
000
rpm
two
or
three
times
under
no
load
then
run
engine
for
one
minute
at
idling
speed
7
Adjust
throttle
adjusting
screw
so
that
engine
speeds
are
as
indicated
below
Engine
speed
Manual
transmission
815
rpm
Automatic
transmission
in
D
position
670
rpm
8
Check
ignition
timing
if
neces
sary
adjust
it
to
the
value
required
by
specifications
This
operation
need
not
be
carried
out
at
1
600
Ian
1
000
miles
service
9
At
about
10
minutes
after
engine
is
run
at
idling
speed
adjust
idle
adjusting
screw
until
maximum
rpm
is
obtained
ET
12
10
Repeat
procedures
as
described
in
steps
6
7
and
9
above
until
engine
speed
at
best
idle
mixture
is
815
rpm
for
manual
transmission
models
and
670
rpm
for
automatic
transmission
models
in
D
position
Adjustment
in
step
9
can
be
carried
out
right
after
step
7
II
Turn
the
idle
adjusting
screw
clockwise
until
engine
speed
drops
off
below
specified
rpm
Engine
speed
drops
off
Manual
transmission
60
to
70
rpm
Automatic
transmission
in
D
position
15
to
25
rpm
12
Connect
air
hose
to
air
check
valve
If
engine
speed
increases
readjust
it
to
the
specified
speed
with
throttle
adjusting
screw
IDLE
LIMITER
CAP
Do
not
remove
this
idle
limiter
cap
unless
necessary
If
this
unit
is
removed
it
is
necessary
to
readjust
it
at
the
time
of
installation
To
adjust
proceed
as
follows
1
After
adjusting
throttle
or
idle
speed
adjusting
screws
check
to
be
Sure
that
the
amount
of
CO
con
tained
in
exhaust
gases
meets
the
established
standard
2
Install
idle
limiter
cap
in
position
making
sure
that
the
adjusting
screw
further
turn
1
8
rotation
in
the
CO
RICH
direction
Carburetor
stopper
3lSo
ldle
limiter
cap
T
ET031
Fig
ET
18
Setting
idle
limiter
cap
CHECKING
CARBURETOR
RETURN
SPRING
Check
throttle
return
spring
for
cracks
squarene
s
or
defonnation
if
necessary
replace
with
a
new
one
Page 25 of 537
CHECKING
CHOKE
MECHANISM
Choke
plate
and
linkage
1
Check
choke
valve
and
mech
anism
for
free
operation
and
clean
or
replace
if
necessary
A
binding
can
result
from
petroleum
gum
formation
on
choke
shaft
or
from
damage
2
Check
bimetal
cover
setting
Index
mark
on
bimetal
cover
is
usually
set
at
center
of
scale
Note
Always
align
the
index
mark
on
bimetal
cover
with
the
center
index
mark
on
choke
housing
3
Every
day
before
starting
engine
depress
the
accelerator
P
dal
to
see
if
choke
valve
is
closed
automatically
If
it
fails
to
be
closed
the
chances
are
that
link
movement
is
unsmooth
Engine
Tune
up
or
that
bimetal
is
out
of
order
Refer
to
Carburetor
in
Section
EF
CHECKING
FUEL
LINES
Hoses
pipings
connections
etc
Check
fuel
lines
for
loose
con
nections
cracks
and
deterioration
Retighten
loose
connections
and
re
place
any
damaged
or
deformed
parts
REPLACING
FUEL
FILTER
Check
for
a
contaminated
filter
and
water
deposit
All
engines
use
a
replaceable
cartridge
type
fuel
filter
as
an
as
sembly
@
Fig
ET
19
Fuel
filler
ET011
EMISSION
CONTROL
SYSTEM
CHECKING
CRANKCASE
EMISSION
CONTROL
SYSTEM
REPLACING
P
C
V
VALVE
AND
FILTER
CHECKING
VENTILATION
HOSE
CHECKING
EXHAUST
MANIFOLD
HEAT
CONTROL
VALVE
CHECKING
SPARK
TIMING
CONTROL
SYSTEM
SPARK
DELAY
VALVE
Automatic
transmission
models
only
INSPECTION
CHECKING
AUTOMATIC
TEMPERATURE
CONTROL
AIR
CLEANER
OPERATING
PRESSURE
OF
BOOST
CONTROLLED
DECELERATION
DEVICE
B
CD
D
I
ADJUSTMENT
CHECKING
B
C
DD
CIRCUIT
WITH
FUNCTION
TEST
CONNECTOR
CHECKING
CRANKCASE
EMISSION
CONTROL
SYSTEM
REPLACING
P
C
V
VALVE
AND
FILTER
Check
P
C
V
valve
in
accordance
CONTENTS
ET
13
ET
13
ET
14
ET
14
ET
14
ET
14
ET
15
ET
15
ET
17
ET
17
ADJUSTMENT
OF
SET
PRESSURE
OF
BOOST
CONTROLLED
DECELERATION
DEVICE
B
CD
D
CHECKING
B
C
D
D
SOLENOID
VALVE
CHECKING
AMPLIFIER
Manual
transmission
models
REPLACING
AIR
PUMP
AIR
CLEANER
ELEMENT
CHECKING
EXHAUST
GAS
RECIRCULA
TION
E
G
R
CONTROL
SYSTEM
CHECKING
EVAPORATIVE
EMISSION
CONTROL
SYSTEM
CHECKING
CATALYTIC
CONVERTER
INSPECTION
CHECKING
FLOOR
TEMPERATURE
WARNING
SYSTEM
INSPECTION
with
the
following
method
With
engine
running
at
idle
remove
ventilator
ose
from
P
C
V
valve
If
the
valve
is
properly
working
a
hissing
ET
13
ET
18
ET
20
ET
20
ET
20
ET
20
ET
22
ET
23
ET
23
ET
23
ET
23
noise
will
be
heard
as
air
passes
through
the
valve
and
a
strong
vacuum
should
be
felt
immediately
when
a
finger
is
placed
over
valve
inlet
Page 26 of 537
Fresh
air
Blow
by
gas
CHECKING
VENTILATION
HOSE
1
Check
hoses
and
hose
connec
tions
for
leaks
2
Disconnect
all
hoses
and
blow
them
out
with
compressed
air
If
any
hose
cannot
be
free
of
obstructions
replace
Ensure
that
flame
arrester
is
surely
inserted
in
the
hose
between
air
cleaner
and
rocker
cover
CHECKING
EXHAUST
MANIFOLD
HEAT
CONTROL
VALVE
Run
engine
and
visually
check
counterweight
to
see
if
it
operates
properly
I
For
some
time
after
starting
engine
in
cold
weather
counterweight
turns
counterclockwise
until
it
comes
into
contact
with
stopper
pin
installed
to
exhaust
manifold
Counterweight
gradually
moves
down
clockwise
as
engine
warms
up
and
ambient
temperature
goes
higher
around
exhaust
manifold
2
When
engine
speed
is
increased
discharge
pressure
of
exhaust
gases
causes
counterweight
to
move
down
ward
clockwise
Engine
Tune
up
CoOl
1
Oil
level
gauge
2
8affle
pia
te
3
Flame
arrester
4
Filter
5
P
C
V
valve
6
Steel
net
7
Baffle
plate
1fiI
o
EC716
Fig
ET
20
Crankcaae
emi
ion
control8
tem
3
When
heat
control
valve
is
in
the
full
open
position
counterweight
moves
further
clockwise
exceeding
the
position
described
in
1
1
above
and
stops
again
coming
into
contact
with
stopper
pin
ct
t
C
EC245
1
Counterwe
ht
2
Stopper
pin
3
Heat
control
valve
Fig
ET
21
Cold
operation
of
counte
weigh
t
EC246
1
Counterweight
2
Stopper
pin
3
Heat
control
valve
Fig
ET
22
Hot
operation
of
counter
weight
ET
14
2
With
engine
stopped
visually
check
E
F
E
system
for
the
following
items
I
Thermostat
spring
for
dismount
ing
2
Stopper
pin
for
bend
and
count
er
weight
stop
position
for
dislocation
3
Check
heat
control
valve
for
malfunction
due
to
break
of
key
that
locates
counterweight
to
valve
shaft
4
Check
axial
clearance
between
heat
control
valve
and
exhaust
mani
fold
Correct
clearance
is
0
7
to
1
5
mm
0
028
to
0
059
in
5
Check
welded
portion
of
heat
control
valve
and
valve
shaft
for
any
indication
of
crack
or
flaking
6
Rotate
heat
control
valve
shaft
with
a
fmger
and
check
for
binding
between
shaft
and
bushing
in
closing
and
opening
operation
of
heat
control
valve
If
any
binding
is
felt
in
rotating
operation
move
valve
shaft
in
the
rotation
direction
several
times
If
this
operation
does
not
correct
binding
condition
it
is
due
to
seizure
between
shaft
and
bushing
and
exhaust
mani
fold
should
be
replaced
as
an
assem
bly
CHECKING
SPARK
TIMING
CONTROL
SYSTEM
This
system
is
installed
on
non
California
automatic
transmission
models
SPARK
DELAY
VALVE
Automatic
transmission
models
only
This
valve
delays
vacuum
spark
advance
during
rapid
acceleration
it
also
cuts
off
the
vacuwn
spark
advance
imme
iately
upon
deceleration
The
valve
is
designed
for
one
way
opera
tion
and
consists
of
a
one
way
umbrel
la
valve
and
sintered
steel
fluidic
restrictor
Page 29 of 537
OPERATI
NG
PRESSURE
OF
BOOST
CONTROLLED
DECELERATION
DEVICE
B
C
D
D
ADJUSTMENT
CHECKING
a
C
D
D
CIRCUIT
WITH
FUNCTION
TEST
CONNECTOR
Manual
transmission
models
I
Check
for
continuity
between
@
and@
at
a
speed
of
zero
km
Refer
to
Figure
ET
30
B
C
D
D
circuit
is
functioning
properly
if
continuity
exists
and
volt
meter
reading
is
0
volt
d
c
in
step
2
below
If
continuity
does
not
exist
check
for
disconnected
connector
and
or
faulty
amplifier
speed
detecting
switch
or
B
C
D
D
solenoid
valve
2
Check
for
presence
of
voltage
across
@
and
@
at
a
speed
of
more
than
16
km
h
10
MPH
Refer
to
Figure
ET
31
Conduct
this
test
by
one
of
the
following
two
methods
i
Raising
up
rear
axle
housing
with
stand
2
Chassis
dynamometer
test
If
voltmeter
reading
is
0
volt
at
a
speed
of
more
than
16
km
h
10
MPH
circuit
is
functioning
prop
erly
If
voltmeter
reading
is
not
0
volt
check
for
disconnected
connector
burned
fuse
faulty
amplifier
B
C
D
D
solenoid
valve
or
speed
detecting
switch
3
If
by
above
checks
faulty
part
or
unit
is
located
it
should
be
removed
and
tested
again
If
necessary
replace
Automatic
transmission
models
I
With
inhibitor
switch
ON
UN
or
P
position
check
for
presence
of
voltage
across
@
and
@
Refer
to
Figure
ET
30
If
voltmeter
reading
is
12
volts
d
c
B
C
D
D
circuit
is
func
tioning
properly
Engine
Tune
up
If
voltmeter
reading
is
zero
check
for
disconnected
connector
faulty
solenoid
valve
or
inhibitor
switch
erly
If
ohmmeter
reading
is
32
ohms
or
above
check
for
poor
connection
of
connector
faulty
B
C
D
D
sole
noid
valve
or
inhibitor
relay
3
If
by
above
checks
faulty
part
or
unit
is
located
it
should
be
removed
and
tested
again
If
necessary
replace
2
With
inhibitor
switch
OFF
41
2
D
or
R
position
check
for
resistance
between
@
and
@
Refer
to
Figure
ET
31
If
ohmmeter
reading
is
25
ohms
or
below
circuit
is
functioning
prop
l
E
r
1
Ignition
key
2
Fuse
3
Amplifier
4
Speed
detecting
switch
Above
10
mph
OFF
Below
10
mph
ON
5
Function
test
connector
6
B
C
D
D
solenoid
valve
EF711
Fig
ET
30
B
C
D
D
circuit
with
function
tedconnectoT
Manual
transmission
modela
@
1
Ignition
key
2
Inhibitor
switch
N
P
positions
ON
I
2
D
R
positions
OFF
3
D
C
D
D
solenoid
valve
4
Function
test
connector
5
Inhibitor
relay
EF712
Fig
ET
31
Checking
B
C
D
D
circuit
with
function
tf
st
connf
ctor
Automatic
transmiMion
modtla
ET
17
Page 30 of 537
r
ADJUSTMENT
OF
SET
PRESSURE
OF
BOOST
CONTROLLED
DECELERATION
DEVICE
B
C
D
D
Generally
it
is
unnecessary
to
ad
just
the
B
C
D
D
however
if
it
should
become
necessary
to
adjust
it
the
procedure
is
as
follows
Prepare
the
foUowlnB
tools
I
Tachometer
to
measure
the
en
gine
speed
while
idling
and
a
screw
driver
2
A
vacuum
gauge
connecting
pipe
Note
A
qui
k
response
type
boost
gauge
such
as
Bourdon
s
type
is
recommended
a
mercury
type
manometer
should
not
be
used
To
properly
set
the
B
C
D
D
set
pressure
proceed
as
follows
I
Remove
the
harness
of
solenoid
valve
TO
D
D
solenrod
VT
FJ
1
B
C
D
D
solenni
valve
harness
J
ri
y
EF262
F
g
ET
32
Removing
harneS5
of
solenoid
valve
2
Connect
rubber
hose
between
vacuum
gauge
and
intake
manifold
as
shown
Fig
ET
33
Connecting
vacuum
gauge
3
Warm
up
the
engine
until
it
is
heated
to
operating
temperature
Then
adjust
the
engine
at
normal
Engine
Tune
up
idling
setting
Refer
to
the
item
Idling
Adjustment
in
page
ET
II
Idling
engine
speed
Manual
transmission
750
rpm
Automatic
transmission
in
D
position
650
rpm
4
Run
the
engine
under
no
load
Increase
engine
speed
to
3
000
to
3
500
rpm
then
quickly
close
throttle
valve
5
At
the
time
the
manifold
vacuum
pressure
increases
abruptly
to
600
mmHg
23
62
inHg
or
above
and
then
gradually
decreases
to
the
level
set
at
idling
6
Check
that
the
B
C
D
D
set
pres
sure
is
within
the
specified
pressure
Specified
pressure
0
m
sea
level
and
760
mmHg
30
inHg
atmos
pheric
pressure
Manual
transmission
510
to
550
mmHg
20
1
to
21
7
inHg
Automatic
transmission
490
to
530
mmHg
19
3
to
20
9
inHg
Note
When
checking
the
set
pressure
of
B
C
D
D
find
the
specified
set
pressure
in
Figure
IT
36
from
the
atmospheric
pressure
and
altitutde
of
the
given
location
For
example
if
a
manual
transmis
sion
model
vehicle
is
located
at
an
altitude
of
1
000
m
3
280
ft
the
specified
set
preSsure
for
B
C
D
D
445
mmHg
17
5
inHg
7
If
it
is
higher
than
the
set
level
turn
the
adjusting
screw
counter
clockwise
or
nut
clockwise
until
correct
adjustment
is
made
Non
California
models
Adjusting
screw
type
California
models
Adjusting
nut
type
Note
When
adjusting
B
C
D
D
for
California
models
turn
adjusting
nut
in
or
out
with
lock
spring
in
place
Always
set
lock
spring
prop
erly
to
prevent
changes
in
set
pres
sure
ET
18
Non
california
models
1
Adjusting
screw
2
Cover
e
ET037
California
models
r
1
Adjusting
nut
2
Lock
spring
EC692
Fig
ET
34
Adjusting
Bet
pressure
8
Race
the
engine
and
check
for
adjustment
9
If
it
is
lower
than
the
set
level
turn
the
adjusting
screw
or
nut
until
correct
adjustment
is
made
10
Race
the
engine
and
check
for
adjustment
If
engine
speed
cannot
be
decreased
to
idling
when
checking
B
C
D
D
set
pressure
proceed
as
follows
When
the
engine
speed
does
not
fall
to
idling
speed
it
is
necessary
to
reduce
the
negative
idling
pressure
of
the
manifold
to
lower
than
the
set
pressure
of
the
B
C
D
D
The
engine
speed
will
not
drop
to
idling
speed
when
the
negative
idling
pressure
is
higher
than
the
set
pressure
of
the
B
C
D
D
In
this
case
the
engine
must
be
labored
by
I
road
test
or
2
chassis
dynamometer
or
3
by
raising
up
rear
suspension
member
on
a
stand
accel
erating
the
vehicle
to
64
to
80
krn
h
40
to
50
MPH
in
top
gear
manual
transmission
or
in
D
position
auto
matic
transmission
and
then
releasing
the
accelerator
pedal
and
letting
the
vehicle
decelerate
After
doing
this
check
whether
the
B
C
D
D
set
pres
sure
is
at
the
predetermined
value
or
not
Page 32 of 537
r
CHECKING
B
C
D
D
SOLENOID
VALVE
I
Turn
on
engine
key
Do
not
start
engine
2
Ensure
that
solenoid
valve
clicks
when
intermittently
electrified
as
shown
in
Figure
ET
37
Fig
ET
37
Checking
solenoid
uolV
l
I
l
EF264
2
Turn
ignition
key
to
ON
posi
tion
3
Ensure
that
tester
pointer
deflects
when
ignition
key
is
turned
on
4
If
tester
panter
does
not
deflect
when
solenoid
valve
and
speed
detect
ing
switch
circuits
are
functioning
properly
amplifier
is
faulty
Engine
Tune
up
3
If
a
click
is
heard
solenoid
valve
is
normal
4
If
a
click
is
not
heard
at
all
check
for
continuity
with
a
circuit
tester
If
discontinuity
is
detected
replace
sole
naid
valve
CHECKING
AMPLIFIER
Manual
transmission
models
The
amplifier
is
installed
at
the
rear
of
the
speedometer
To
check
proceed
as
follows
1
Set
circuit
tester
in
d
c
ampere
range
IA
min
full
scale
connect
test
probes
of
tester
as
shown
in
Figure
ET
38
Do
not
confuse
positive
line
with
negative
line
M
p
1
II
L
o
A
I
of
j
t
J
f
T
1
Ignition
key
2
Amplifier
3
Speed
detecting
switch
4
B
C
D
D
solenoid
valve
Fig
ET
38
Checking
amplifiu
REPLACING
AIR
PUMP
AIR
CLEANER
ELEMENT
Remove
air
hose
then
detach
air
cleaner
from
hoodledge
Air
cleaner
element
and
air
cleaner
lower
body
are
built
into
a
unit
construction
Replace
air
cleaner
element
and
lower
body
as
an
assembly
ET
20
EC323
Fig
ET
39
Repl4cing
air
cleaner
element
CHECKING
EXHAUST
GAS
RECIRCULATION
E
G
R
CONTROL
SYSTEM
Checkln
E
G
R
control
system
In
Ita
mounted
condition
I
M
ake
a
thorough
visual
check
of
E
G
R
control
system
If
necessary
wipe
away
oil
to
facilitate
inspection
If
hoses
are
cracked
or
broken
fe
place
2
With
engine
running
check
E
G
R
warning
system
for
proper
function
Make
sure
that
E
G
R
warn
ing
lamp
light
when
ignition
switch
is
turned
to
START
position
starter
mo
tor
runs
If
E
G
R
warning
lamp
does
not
light
inspect
harnesses
and
con
nectors
or
replace
warning
lamp
Then
turn
ignition
switch
to
ON
position
and
check
the
following
items
I
If
odometer
of
detector
drive
counter
has
not
reached
50
000
counts
make
sure
that
E
G
R
warning
lamp
does
not
light
2
If
odometer
of
detector
drive
counter
has
attained
50
000
counts
make
sure
that
E
G
R
warning
lamp
lights
If
warning
lamp
does
not
light
check
harnesses
connector
and
de
tector
drive
counter
replace
warning
lamp
or
detector
drive
counter
if
necessary
Note
Operation
of
E
G
R
warning
lamp
is
as
follows
Page 35 of 537
3
If
there
is
a
leak
remove
top
cover
from
purge
contiol
valve
and
check
for
dislocated
or
cmcked
dia
phragm
If
necessary
replace
dia
phmgm
kit
which
is
made
up
of
a
retainer
diaphragm
and
spring
I
@
1
Cover
2
Diaphragm
3
Retainer
4
Diaphragm
spring
Fig
ET
47
ET350
Carbon
caniater
purge
control
valve
Carbon
unlster
filter
Check
for
a
contaminated
element
Element
can
be
removed
at
the
bottom
of
canister
installed
on
vehicle
body
Fig
ET
48
Replacing
carbon
canister
filter
Fuel
tank
vacuum
relief
valve
operation
Remove
fuel
filler
cap
and
see
it
functions
properly
I
Wipe
clean
valve
housing
and
have
it
in
your
mouth
2
Inhale
air
A
slight
resistance
ac
companied
by
valve
indicates
that
valve
is
in
good
mechanical
condition
Note
also
that
by
further
inhaling
air
the
resistance
should
be
disappeared
with
valve
clicks
Engine
Tune
up
3
If
valve
is
clogged
or
if
no
resist
ance
is
felt
replace
cap
as
an
assem
bled
unit
r
u
ET369
Fig
ET
49
Fuel
filler
cap
CHECKING
CATALYTIC
CONVERTER
INSPECTION
Preliminary
inspection
Visually
check
condition
of
all
component
parts
including
hoses
tubes
and
wires
replace
if
necessary
Refer
to
Inspection
of
A
I
S
on
page
EC
17
Catalytic
converter
Whether
catalytic
converter
is
nOf
mal
or
not
can
be
checked
by
ob
serving
variation
in
CO
percentage
The
checking
procedure
is
as
follows
Apply
parking
brake
Shift
gears
into
Neutral
for
manual
transmission
and
Neutral
or
Park
for
automatic
transmission
1
Visually
check
catalytic
converter
for
damage
or
cracks
2
Remove
air
hose
between
5
way
connector
and
air
check
valve
Plug
the
disconnected
hose
to
prevent
dust
from
entering
Refer
to
page
ET
12
3
Check
carburetor
pipes
for
proper
connection
4
Warm
up
engine
sufficiently
5
Race
engine
1
500
to
2
000
rpm
two
or
three
times
under
no
load
then
run
engine
for
one
minute
at
idling
speed
6
Adjust
throttle
adjusting
screw
until
engine
attains
to
specified
speed
Refer
to
page
ET
12
7
Check
ignition
timing
If
neces
sary
adjust
it
to
specifications
Refer
to
page
ET
10
ET
23
8
Adjust
idle
adjusting
screw
until
specified
CO
percentage
is
obtained
Refer
to
page
ET
12
9
Repeat
the
adjustment
process
as
described
in
steps
5
to
8
above
until
specified
CO
percentage
is
obtained
Note
Adjustment
in
step
9
should
be
made
ten
minutes
after
engine
has
warmed
up
10
Race
engine
1
500
to
2
000
rpm
two
or
three
times
under
no
load
and
make
sure
that
specified
CO
per
centage
is
obtained
I
1
Remove
cap
and
connect
air
hose
to
air
check
valve
If
idling
speed
increases
readjust
it
to
specified
speed
with
throttle
ad
justing
screw
12
Warm
up
engine
for
about
four
minutes
at
2
000
rpm
under
n
load
13
Measure
CO
percentage
at
idling
speed
After
step
12
has
been
com
pleted
wait
for
one
minute
before
making
CO
percentage
measurement
14
If
CO
percentage
measured
in
step
13
is
less
than
0
3
the
catalylic
converter
is
normal
15
If
CO
percentage
measured
in
step
13
is
over
0
3
recheck
A
I
S
and
replace
air
check
valve
Then
perform
inspection
steps
12
and
13
16
If
CO
percentage
is
still
over
0
3
in
step
15
catalytic
converter
is
malfunctioning
Replace
catalytic
con
verter
CHECKING
FLOOR
TEMPERATURE
WARNING
SYSTEM
INSPECTION
Floor
warning
temperature
system
Apply
parldng
brake
Shift
gears
into
Neutral
for
manual
transmission
and
Neutral
or
Park
for
automatic
transmission
1
Ensure
that
floor
tern
perature
warning
lamp
lights
when
ignition
switch
is
turned
to
the
S
position
If
not
check
lamp
for
burned
bul
bs