1993 NISSAN SERENA fuel cap

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sNo[ovc3Hd

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

EVAPORA'IIVE
EMISSION CONTROL SYSTEM
Inspection (Cont'd)
FUEL TANK VACUUM FELIEF VALVE
1. wp6 cl.an valv. housing.
2. Slck ar Ihbuqh lh€
cap. A
slight resislance ac@frpan ed
by va ve
clicks indicates lhat valve is in good
mechanica
@ndition. Nole rlso rrrdl. by lurh€r sLc{nq.i.. rh€
€66.
lance shoLld disapp€arwllh valve
clicks.
3. lf valv€ s cloqged or ii no resistanoe
is lelt, replace cap as
FUEL CHECK VALVE
1. Blow air lhrouoh
connectof o.lleliank side.
A 6nsid6Eble
rcsistance should be lell and a podon
olair
llow 6hou d be direcied iowad lhe €n sl6r.
2. Blow
air though connedof on €n sl€f s de.
An tlow should be smoolh y
dn€cbd loward luel
lank.
3. ll '.erch€c
vs v€ i6.urpected
ol.or p
opedy luncroli!
n step6 1
and 2 above, replace il.
EF & EC€,10