1993 NISSAN SERENA Service Repair Manual

INJECNON
NOZLE
lnso€c{ion
Thobughly clean all dlsassembled pans
wlh lresh ke@*ne
or
. ll
nozzlB n€€dl€ is damag.d or lused, rgpl€co nozl€
4sembly wirh a new one.
. ll
end ot nozle nedle is @i2ed or er@ssively dlscolored,
€Dlace nozl€ ass€mblv.
. Check
nozle body and disiancB
d€6 lor
pbp6r
contacl.
ll €xcessivBly woh or dam.ged, rcdae nozl€ ass€mbly
. Check noz2le spring toi ex@sslee wear or damage. r
€xcossiv6ly won or damag€d, r.pla@ it wifr a n€w sping.
Cleaning
1. Do
.d loFh lh. .ozde n.dng srlE rlth ydr
trngd.
To wh $. no!r6, uo a soorr.n dck sd b|a bru3h
Benove any calbon lrom 6n€nor ol nozzla body (6x.6pt
wEppingsngl€ ponion)
by u6inq Tool.
2 Clean oilsunp ol no2zle
body !s'ng Tool.
3- Cl€an nozla s€al
by u.inoTool,
Tak elti p@udon.
stM p..ldmlng
thb job,
dE n@|€
.lfrclscy lbpen& g€rly
d a good
no{d6 sr
EF & EC€81'

INJECTION
NOZLE
Cleaning (Colx'd)
4. Cl@n sp€y hole of nozzlo body by using Tool.
fo pewn
sphy hols itqn @iilng, d{aF clean lt by .lartng
wiih inftr sld. dd rcdiing lMd3 th. oubide.
5 D€cadonare nozzle.eedle
tp by usrng T@1.
(1 ) Plll
nedle aboul haLfway oul f@m body and lh6n
Elease
(2) Noodlo should sink inro body v€ry
6moothly tom just
iis
(3) Fep€al lhis lesi and 6lale needle slighny each lim6.
li Fd. l.||3 ro 3hk moorht fin any p..trbn,
EdG both
n6db ed bodv s . lnll.
Assembly
Assombly in
lh. €@rs order ot disassenby, obsoMng rh.
I n@b body b not In.lrll.d properly,
Tool @nno( b6 dtrFEd
.nd noda
body m.y
he dam.ged,
tlotd* lo .ozde nut
" (&o -
10.0 kg-m,
53 -
72 lt-lb)
EF & EC€81

INJECTION
NOZZLE
Tesl and Adiunmenl
wten clng node tester, be @r€t!t noi to dtow dt€Bt tu€l
lpbyed lrofi n@b ro 6lnEr your
h.nd. or body,
od mal.c
sE your
€y€3 rE p.opery
pdecled
wnh qoggl6,
NJECNON PFESSURE TEST
1. Inslall
nozzle lo injection nozzlBlesld 5.d bl6ed
an lrom
2. Plmp
ihe lesier handle slowly (onc€
p*
se@nd) and
waEn oe piessurc
qa!s6.
3. Fead ihe p@ssure
sausBwh€n rh€
injecllon pressucjlsl
hili.l ini6ction pt€5!e:
12C59 -
13?39 kP5 (1225
-
l3:t,4 bar. 125 -
i35
ksbrnl 1,7t3 -
1,92O psl)
13,239 -
14,024 kPa
032.4 -
140, hd,
135 -
143
kg/m", I,Co.2,033 p6i)
Atwarys chek Initi.l lnjecrlon pllgF
u6lng a tu |Ete
a. To adjust injeclion p€ssur€,
change adjustins shims.
.. Inc|@lnq 116 lhickE or
.dlBtlng .hlns ircE.s
hi
tal lnlrclion pEsue.
[email protected] michs rqtuG
tnl al
b. A 3hh rhblfts or 0.04
nm (00016
in) @nEponds
6p9rorinEr€ly to r dltleEG ot 471 kPa
{471 bar,
43
kg/cnz,63 p6l)
In hldal ini6crion p.€sue.
Rd€r ro s.D.s.
id adiumng shin.
EF & EC{42

INJECTION
NOZZLE
Lllt ti lI lll
LrElr qvf
a,a
Fr?FF
ILil Tesl
and Adiuslment (Cont'd)
LEAKAGE TEST
1. Maintain rhe
D€ssuF at
abolt 931 io 1.961 kPa (9.6
lo
1S.6 bar, 10
to 20 kor'cn2, 142 to 234 psi)
b€toi tnilial
2. Ch6ok tha1lho.e ie.o leakaga
tom lhe no22le lip or around
3. li lh€€ is l.akage,
clean, ovehaulor Bpla@ nozle.
SPFAY PATTERN TEST
1 . Punp lhe l€std handl€ on@ per
s@nd.
2. Check rh€ spray pallen.
3. ll th. sp€y panem
is not cor€cr, ct.an
of @pta@ noz2te.
EF & EC-383

FUEL
SYSTEM CHECK
Primlng Pump Check
8610€ dreldng pdming
punp,
nake 3ue lhat tuel fller is
1. Disonnectlu6l nl€t hos6.
Ple. $-'bbL @ liB b€@rh h@ sd.
2. Pump pr
ming pump
and check lhal (he
luel ovedlows tom
lhe hose
end. ll
not, repla@ pining
p!mp.
Fuel Cut Solenoid Valve
1 . Di$onneot tuel cul solsnoid valv. ham€ss conn*lof
and
Ch*k fu.
cut.olanoid valva
lor.ircuil corninuity.
Femov. luel
cut soe.od valve and check that pllngef
moves smoolhly andihalspring is nomal.
Cold Stari Derric!
R.er lo F*r
ldb
3!ed adlu.rn nt (Pag.
EFeEc-373)
-_
r: -
EEor
EF & EC.384

FUEL
FILTER
Fuol r€turn control system
. Mo&le lor
EurcF
.nd cold aF.. indFFL
ltF
tuel
r.lum @n!d 6yatern.
Fuel Relun ConlrclSyslen (F.F.C.S.) p@venls
c osgins or lh6
luel lile' by cncLlaliag ovedlowrJ. wsn€d by lh€ l-e
ini€c.
lion purp
w's1arb.1t l€rp€Blu € is low The llcr v. v€ i.
lho syslBm prBv6nls
lrapp6d an lrcm circllalinq
lhough lhe
lu€l lin6 and lh6 ch€ck valve prev€
nt' Eve 6e llow
ol lu€l tom
When lhe luel iemperailre is above 30'c (a6'F),
a bimBla
valve aclivalos to slop tu€ circulalion.
EF & EC-385

CBANKCASE
VEiMLATION SYSTEM
Venlilation Ho6e
1. Chec* hosos and ho.e
connedions for l€ak€-
2. D'sn.ed alhos6s
ano d@n wilh€mp€E.ed
an Iany
-
hose€nnol b€ k6.d
ol obslruclDns. f;lac€.
EF & EC-386

OUICK.GLOW
SYSIEM E
Wiring Diagram -
With E.G.R. systom
a@
LA|a
ffi46::r
r9g 0
o
t!-
.:
:
E
@
lE)e,
@q"
lse
J,ir €==OE:g
(0 t;r,
;,$ffif ![
@_
00@o
'tl l" "ld ----r
-
{9 {5
o R\l;
* s
";'r lJl1
-i6 -.3ri
e B _-------t-t
1.,'..-'.. .-
:i!
til ! :E!t
^
0B I ri-lL ui
I L:-
n:! 36
r; | D
Lr .e:
rel
, e, tdll$ c
t -;;; _'{"€!F';
t
.:,::$.s:!;:i"
&:
!,i:::
p
;
E
&
E
H
& F
Ed
is?
:l
QEqI
lr l
&i'a
';3! 1;l
l:l
OE 6E
l!l
EF & EC^387