1993 NISSAN SERENA Service Repair Manual

TROUBLE
DIAGNOSES
Eleclricsl Components Inspec{ion (Coni'd)
Di6connecl A,A.C, valve rcsistance,
Apfoxlmalely ioc)
Ch€ck plunger
lor 6eizin9
or slickinq.
Check tor boken spi.g.
r<*"
[*--:
d(b@r' EI.C.D
SOLENOID VALVE
Ois@nn€cl F.|.C.D.
.olenoid va ee
. Check lor clicking sound whenapplying 12V dn6cl cuir€nl
Ch€ck pung€rbr
seizing or sticking.
Check lor toke. spdng.
AIR FEGULATOF
. Checkair
regu alor @sislans.
Apprqioat {y 70 -
30o
. Check air reg! aior tor cloqginq.
e\
EF & EC+12

TROUBLE
DIAGNOSES
@-,ffi€'
Ei6
CilE FADIAIOA
FAN IVIOTOAS
Dis6nn6cl €dialor fan molor haness
connectoF and supp y
hdiator fan molor l€m nals w(h
banery @ltaqe.
Electrical
components Inspectlon (conl'd)
INJECTOF
1. Disconned injeclor hamess oonneclor.
2. Cheok €sislance between leminalsasshown in the tigure.
Rdtub@: 10 -
l4O
ll N.G., r€plac6 nteclor.
ll N.G., rep..e radiatorlan
hobr.
E.C.C.S. FELAY, FADIAIOF FAN
FELAYS AND FUEL
Cheok oontinuily belweon lominas
O and
O
lf N.G., €p1..6 16
ay.
RAOIATOR FAN RELAY.2.
Cheok oontnuily belw66n lemina s
O .nd
O. @ and
O.
bsesibmhas
o md
@
ll N G, rep
a.e reay.
NEUIRAL SWTTCH
Ch€ck coniinuily b€tdeen
rerm'nars
@ a.d
o.
o
o
o
@ o
@ @
EF & EC€3:l

TROUBLE
DIAGNOSES
Electrical Components Insp€ction (Contd)
FESISTOF
L Disconnecl res slof ham6s cofneolor.
2 ch€ck rcsistance belw@n lominals
@ and
O.
B€d.r.ne: App@ximaiely
22 1(.)
It N.G., reda@ res slor.
PIOWEN SEERING OIL PBESSUFE SWITCH
1 . Ois@nngcl pow€r
sle€ nO
oil p@ssu€
swllch hame$ co.-
3. check continuily
belween leminars
@ and
@ .
ll N.G..
rcplace powersteeing
oiiprc.sur6 swtch.
E.G.F. & CANISTEF
CONTFOL SOLENOID VALVE
1. Dis6nn6.t E.G R.
& ca.ister @nlo sol€noid valv€ haF
2 Check e enoid va v€, lollowing rhe iable
as 6hdn be ow:
ll N.G.. EDlaoe E.G.B. & enisl€r mnlrclsoenold
vave.
E.G.F. COI{TBOL VALVE
Apply vacuum ro E.G.B, vacuum pon
E.G.F, controlvalve sprlng shoutd tilr
ll N.G., repla@ E..G.R.6nlrc valve.
€
iLIJ
E
EF & EC-334

TROUBLE
DIAGT'IOSES
Electdcal Components Inspeclion (Confd)
B.P.T, VALVE
Plug on6 ol two porl3
oi B.P.T. valv6.
Apply a p€ssure
above 0.rt9o kPa
(50
mmH?O, 1.97 lnH2O)
lo chock tor leakage, li a leak ls noled, ,eprace valv6.
EF & EC-33s

FUEL
INJECTION
CONTNOL SYSTEM INSPEC]'ION
Releasing Fuel Prcssure
Eet rc dlsnrEtlng ftFl lift, El.Es nd pEsuB
lrom tu€l
1. Tum iqnilion swilch "ON'.
2. P6r'om 'FU€L
PFESSURE FELEASE" in woRK
SUPPOBT mode wilh CONSULT.
4. Atler enline sla ls, c6nk il two or thr€e
limes lo
re ea* alliuelp6ssuG.
5. Tuh iQnilion swilch ofi.
1 Femoveluse ior fue pump.
3. Atl6r 6noin€
stals, crank ii lwo or lhr@ limes lo
16 €as€
all luel p€ssure.
4. Tun igniiion
switoh oll and rcconngcl iu€l pump
Fuel Pressue
Check
a. Wh6 @nn€cring ftFl llre,
atMys ue n4 ct.npB,
b, M.k€ sE lhd cl.mp
3.g dc nol 4rl*t diEdrt
c. U* a lorq6 dri@r to light n drmpa
d, u$ P€suB G.ug€ b
.nek tuel pl*u6,
€, Do nor p.rlom
luel p|lge
ch6k whit6 lu.t p|€gue
Egularor conaol
sFbm ls oF€ting; othwis, ftFl prF
3uE g.ug€
mlg|n Indl@to incon€cr Edinq..
1 . Bel€ase luel
oressure to zero.
2, D sconnect lue hose b6lw6€n iuel lilter
and luel tube
3. lrcla lpr€ssure qauge
betueen lu6lliller and lu€ltube,
4. Sianengne
aid check lor luel 6akage.
?
o
EF & EC€36

FUEL
INJEC'IION
CONTROL SYSTEM INSPECTION
Fuel Pr€ssur€ Check (Cont'd)
s. Fead lhe ind €no. oliu€lpr65su@ gauAe,
When tuel p|Bue
Egulalor valw ucqum h@
Aporedngl€ly 2'r5 kPa
(2.45 b.r, 2.5 kg/cir2,36 p.l)
$rh.n tuel p|6uE
regulator valve vewm h@ ig
Apfr*inat€ly 294
lPa
(234 bar, 3,0 ks/ch',43 psi)
6. Stop gngine
and db@nnect lu€l pr€s6urc
egllalor vac-
uum hos6 fbm inlake
maniiold.
7. Plug intake manllotd with a tubber cap.
a. Conneclvanab e vacuum sour.6lolu6lpr€.su€ regu
alof.
Iniec{or Removal
and Installation
1. R€l6rs6lu€l pEs.lr€
lo 2erc,
2. Disconn.ct nloclor han€ss
con.ectors.
3. Disconn.ct vaclum
ho* ton pressure
regllalor.
4. D scon.6ct lu€l hoses
frcn llettubeas*nbv.
5. F€mo6 ini€cloE with luel
tube a$embly.
I c
sEn enq'ne a-o ecd '[email protected]
ollu6lpre$u.€ q.ug€
as
FEI pEsuF
.hould de.|e@ 6 veuufr inc|€5s, ll |wlr.
.F qn.atsfaclory,
€pl@ tu61 p|€suE
Egul.lor
EF & EC-3r]7

FUEL
INJECTION
CONTROL SYSTEM
INSPECTION
Injector Removal and Installation (Cont'd)
6. Push outanymaltu.ctoning iijedoriom
rue
lubeassem-
Do not enEd injectd by pinching
co.nector,
7. Feda@ or clean injecbras ne.essary.
a. nslalL ini€clor 10 luellub6 assomblv.
Al@ys cpl@ Gdngs
.nd insulatoB wilh new on$.
Llbrlcale Ginqs wllh
a
sre.r ol
slll@m oil.
9. Instal njeclors wlh ruer
tube assembry lo iilake
fra.ilold.
Tghien luellube bols lo lhe spec lled loque.
Tiqhr.ninq poedu€:
1) Tighren rll boh. ro 93 ro 103 N.n (0.9s
ro Lr
kg-m, 6.9 to 3.0 tt-lb).
a nghten
atl bons to 21 to 26 N n (2,1
to 2.7
kg-m, 15 to 20 tflb),
10. Inslalluelhos€s lo tueltube ass€mbly.
Lubiic5te luel h@ wilh a
s|@r ol sili@ne oil.
11. Feinsla I
any parts
renoved i.
reverse order ol redova.
After preperly
dnecring nd h@
io lnjector
and l@r
tube
.smbry, ch€k @neclion lor l@l l€kagE,
EF & ECn38

EVAPOBATIVE
EMISSION CONTNOL SYSTEM
Oascriprion
Inspeclion
Check cabon oanistor as lo lows:
O :
Blow anand
ensu€ Ihatthe€
@ :
Blow
aiiand ensu.ethailheG
-lhe
evaoo€lve emission coniol svsl€m is
used lo reducc
hydroebons omllted i.lo lh€ almosphere tom
lhe iuel sys
lem. Ths rcdlction ol hydro.arbons
s ac@dpished by acli
val€d char@als in
the cabon canister.
The tlel vapor from the sealod tu. rank i. led into rhe
canister
which conhins aclival€d.adon .nd
lhe vapor
is slored lherc
when lh€ €ngin6 is not tunninQ.
The canister
elains lhe fuelvapof unlillh6 can sl€f is puq€d
bylhe an dBwn through lhe bonom ol lh€
canisler lo the inlake
manilold wh€nlh€ €nqin€ is
running, When the engine runs al
ld€, lh€ purg€.ontrcl
valve is cosed.
OnlV a smal amounl of stored vaDor f ore ntolhe ntake
ma-
nifold lh@ugh lhe corclant plrge
o li@
As the engine speed
incrcases, andlh6lhbnb vacuum
ises hiqher,ftepu€e con,
tolvalve oo€rc and Ihe vaDor is
sucked inlo lhe niake manr
fold through bolh
lhe main purgeorlice
and lh6 conslant pulqe