ECU NISSAN 300ZX 1984 Z31 Engine Control Workshop Manual

FUEL SYSTEM
WARNING:
When replacing fuel line parts, be sure to observe
the following.
a. Put a "CAUTION. INFLAMMABLE" sign in workshop.
b. Be sure to furnish the workshop with
a C02 fire extinguisher.
c. Be sure to disconnect battery ground cable before conducting operations
d Put drained fuel in an explosion-proof container and put lid on securely.
CAUTION :
Before disconnecting fuel hose, release fuel pressure from fuel he. Refer to the "Releasing Fuel Pressure"
a Do not disconnect any fuel line unless absolutely necessary.
b. Plug hose and pipe openings to prevent entry of dust or dirt
c. Always replace O-ring and clamps with new ones
d.
Do not kink or twist hose and tube when they are installed.
e Do not tighten hose clamps excessively to avoid damaging hoses.
f When installing fuel check valve, be careful of its designated direction (Refer to section EC).
g. Run
the engine and check for leaks at connections
FE-3

FUEL SYSTEM
Removal of Fuel Tank
Do not separate fuel tank and fuel filler tube ex-
cept when replacement is necessary.
1 Disconnect harness connectors of fuel tank
gauge unit and electric fuel pump in luggage
compartment
Siphon or pump fuel from filler opening of fuel
tank into
a suitable container Then blow away
fuel from filler opening with compressed clean
air
Remove fuel filler neck ring
2
3
"1 1
Do not strike with hammer and tool SFE756 /
4
5
Remove rear right side wheel
Remove fuel filler tube protectors and discon-
nect ventilation hose
- SFE755
6. Disconnect fuel hoses and evaporative hose on
fuel tube side.
7 Loosen bolt and nut securing mounting bands
and then remove fuel tank with filler tube.
8 When installing fuel filler neck ring tighten as
follows~
-Filler tube
/,/I' SFE765
-Removal of Fuel Gauge Unit-
Lift fuel gauge unit straight up off the fuel tank
Resistor gauge
is made of ceramic material. Be
careful not to bend it.
SFE757
-Removal of Electric Fuel Pump-
Remove fuel tank, then detach fuel pump
FE-4