Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Nissan 300ZX 1984-1985,1988,1990,1994-1996 Approved 1988 Engine Fuel & Exhaust
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ENGINE CONTROL, FUEL &
EXHAUST SYSTEMS
SECTION FY
E I
CONTENTS
ENGINE CONTROL SYSTEM. ...............................................
FUEL SYSTEM ............................................................
EXHAUST SYSTEM ........................................................
FE-2
FE-3
FE-5
V
ENGINE CONTROL SYSTEM
Accelerator Control System
a. Check to see if throttle valve fully opens when accelerator pedal is fully depressed and returns to idle
when released.
b. Adjust accelerator pedal free play by turning adjusting nut.
c. On automatic transmission models, make sure kickdown switch rod is fully pushed in when accelerator
pedal is depressed completely.
d. ON A.S.C.D. equipped models, first adjust accelerator wire and then A.S.C.D. cable. For details, refer to
"Automatic Speed Control Device" in E L section.
e. Check accelerator control parts for improper contact with any adjacent parts.
f. When connecting accelerator wire, be careful not to twist or scratch its inner wire.
g. Apply a light coat of recommended multi-purpose grease to all sliding or friction surfaces. Do not apply
grease t o wire.
A.S.C.D. actuator
0 E-ring
Bushing (Replace)
0 3 0 - 4 0 1 3 . 1 -4.1.22-30
Kiekdown switch
\
Fre8 play m pedal
pad -mer:
1-2mm
-
10.04 0.08 in1
0:m Ikgm, ft-lb)
N SFE935
FE-2
FUEL SYSTEM
WARNING:
When replacing fuel line parts, be sure to observe the following:
a. Put a "CAUTION: 1NFLAMMABLE"sign in workshop.
b. Be sure to furnish the workshop with a CO, fire extinguisher.
c. Be sure to disconnect battery ground cable before conducting operations.
d. Put drained fuel in an explosion-proof container and attach lid securely.
CAUTION:
Before disconnecting fuel hose, release fuel pressure from fuel line. Refer t o the "Releasing Fuel Pmuure"
in EF i EC section.
3
(c12.3 -3.0 I023 - 0 3 1 . 1 . 7 . 2 2 )
Fuel tank gouge unlt
1023.031.1.7-2.
Fuel outlet how
rids
Fuel return t u b
SFE936
a. Do not disconnect any fuel line unless absolutely necessary.
b. Plug hose and pipe openings to prevent entry of dust or dirt.
c. Do not kink or twist hose and tube when they are installed.
d. Do not tighten hose clamps excessively to avoid damaging hoses.
e. When installing fuel check valve, be careful of its designated direction (Refer to section EF & EC).
f. Run the engine and check for leaks a t connections.
FE-3
FUEL SYSTEM
Removal of Fuel Tank
Do not separate fuel tank and fuel filler tube ex- 8. When installing fuel filler neck ring tighten as
cept when replacement is necessary. follows:
1. Disconnect harness connectors of fuel tank r F i l l e r tube
gauge unit and electric fuel pump in luggage
compartment.
2. 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.
3. Remove fuel filler neck ring.
~ ~~
-Suitable tool
Filler neck rim-
-Removal of Fuel Gauge Unit-
Lift fuel gauge unit straight up off the fuel tank.
00 not nrikn Resistor gauge is made of ceramic material. Be
with hammer
,.., careful not to bend it.
and tool. SFE756
4. Remove rear right side wheel.
5. Remove fuel filler tube protectors and discon-
nect ventilation hose.
SFE757
- SFE755 -Removal of Electric Fuel Pump-
6. Disconnect fuel hoses and evaporative hose on Remove fuel tank, then detach fuel pump.
fuel tube side.
7. Loosen bolt and nut securing mounting bands
and then remove fuel tank with filler tube.
FE-4
EXHAUSTSYSTEM
CAUTION:
a. Be careful not t o drop or damage catalytic converter.
b. Never wet catalytic converter with water, oil, etc.
a When removing muffler assembly, always separate it from center tube.
a For A/T models, heat shield plates cannot be removed.
On non-turbocharger models, when removing heat shield plates from front tube, remove the entire front
tube assembly.
After installation, make sure that mounting brackets and mounting insulator are free from undue stress.
If any of above parts is not installed properly, excessive noises or vibrations may be transmitted t o
vehicle body.
a When connecting center tube and muffter assembly, use the Genuine Nissan Sealant "Exhaust Sealant K i t
20720-N2225" or an equivalent t o eliminate gas leakage at the joint.
a Check all tube connections for exhaust gas leaks, and entire system for unusual noises, with engine
running.
FE-5
EXHAUST SYSTEM
ri SFE964
FE-6
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