Datsun C210 series Manual page 30

Engine
Tune
up
MAIN
CAUSES FOR EXCESS CO
He
AND
NOx IN EXHAUST
GASES
Improper
compression
I
Overcooled
1
Insl l f f i c i e nt
cooling
l
En inc and other
parts
1
h
r
k
En
inc fuel
yste
m
f1
xcessive
running
Excess CO resistance
lie
cmi
sinn
l
I
En inc i nition sy
tcm
I
Improper
air fuel
mixture
1
Emj j
n
ontrol sy
m
Malfunction
in
K
automatic choke
system
1
En inc and olher
parls
I
Improper wniiion
r
lim in
1
Engine fuel
system
Exec NO
MalFunction
in
emission
ignition
system
1
Engine ignition
system
1
Em
n ontrol
systcm
MaJfuRetiun in
r
D C D D
I
Malfunction
in
E
G
R
y
tcm
J
Malfunction
in
P
C
V
system
ET 20
Spark
plug leakage
Valve clearance
Blo
n
cylinder
head
gasket
Piston
ring
Cylinder
Thermostat
Radiator
Fan belt
Engine
oil
Radiator hose
Thermostat
Fan
Water pump
Cylinder
head
and
ga5ket
Drakes
Load
Idling
mix lure
Clogged P c V
valve
Air
cleaner
Carburetor
f
uerfilter clogged
Intake manifold
leakage
Check proper
function
Check bi metal
cover
setting
Vacuum line
Ignili
timinr
Dr e a cer
point
gap
Spark plu
Spark plug
wire
Di5tributor
Ignition coil
Wiring hafneS
D C D D set pres
ure
Vllcuum control solenoid valve
Speed
switch M T
Inhibitor switch A T
Vacuum
line
E G R control valve
Thermal
vacuurn
valve
E
G
R tube
and passage
P C V line
OilfillerC
J p
Cylinder
head
cover
Oil
pan
Ventilation
ho