service MITSUBISHI ECLIPSE 1990 User Guide

14-6FUEL SYSTEM -Fuel Supply and Fuel Pressure Control
intake manifold/I\
Engine
Fuel
03AOOlOThe fuel supply system comprises electromagnetic
type injectors, a delivery pipe, a fuel pressure
regulator, a motor-driven fuel pump, and the engine
control unit, which activates and controls the injec-
tors and fuel pump based on data supplied by the
various sensors.
After being filtered by an in-tank filter, the fuel is
pumped from the tank and is filtered again by an
external filter before it is distributed to the injectors
through the delivery pipe. The pressure of fuel
delivered to the injectors is regulated by the fuel
pressure
reoulator; excess fuel after pressure reg-ulation has been performed is returned to the fuel
tankThe injectors are activated on command from the
engine control unit and inject the fuel to each intake
port of cylinder head sequentially according to the
predetermined ignition order.
In addition, a fuel-pressure control valve has been
equipped in order to maintain idling stability of turbo
models immediately after restarting under high- -
temperature conditions.
The fuel tank is located under the floor of the rear
seat, thus giving it protection in the event of a
rear-end collision. A fuel pump drive terminal is
provided in the engine compartment for greater
serviceability.
-
SPECIFICATIONSItems
Fuel pump
Type
Delivery rate
liters (gals.VHr
Delivery pressurekPa (psi)
Fuel pressure regulator
Tvw
Regulated fuel pressurekPa (psi)
Fuel filter
Rated flow rate
liters (qts.)/min.
Filter areacm’ (in.‘)
Injectors
TypeCoil resistance
n

--
.- -_-_
SpecificationsMotor-driven, in-tank type
Minimum 90 (23.8)
450 - 600 (64 - 85)
Diaphragm type
335 (47.6)
255 (36.3)
2
(2.1)
1,500 (233)Solenoid type
,.13-16
2-3
I

FUEL SYSTEM -Fuel Supply and Fuel Pressure Control14-7FUEL TANK
m/ithin the fuel tank are the electric fuel pump, the
.ank filter, and the fuel gauge unit.
-I he fuel tank has the following features:
lThe fuel tank is located below the rear seat floor,thus giving it protection in the event of a
rear-end collision.
<2WD>l The fuel tank is located under the engine
compartment floor instead of installing it under
the rear seat floor where the rear axle is located.
<4WD>lA reserve cup is provided within the fuel tank so
!Detailed view of reserve cup
t2WD>Detaiied view of reserve cup
t4WD>
Fuel03AO267
Fuelthat fuel supply is smooth even when there is
only a small amount of fuel remaining.
lA baffle plate arrangement is used at the proper
place within the fuel tank in order to prevent the
generation of abnormal noise caused by the
undulation movement of the fuel.
l A chipping-protection coating has been applied
at the lower part of the fuel tank in order to
protect the tank from damage by pebbles, etc.
thrown up from the road surface, and from
subsequent corrosion.
lA fuel pump and fuel gauge unit assembly has
been adopted which incorporates the fuel pump
and the fuel gauge unit in one.
<4WD>l A drain plug has been provided in order to
improve serviceability.
Thermistor (for low
fuel warning light)In-tank filter
Fuel tankI
e
/ 03AO268
Drain plug
assembly

BODY - Main Body23-15MAINTENANCE SERVICEABILITY
;ide Structure
Notches are provided in the door
openings for use in aligning panel positions, thus facilitating the assembly of
new parts.
32AOO89Body Center Points
Body center points are provided at the following locations, which serve as reference points for measurements
at replacement of panels. (Refer to “Body Dimensions”.)32A0108
Front body center point reference locationRear body center point reference location

UNITED STATES
The special service tools referred to herein are required for certain service operations. These special service tools
or their equivalent, if not obtainable through a local source are available through the following outlet.32615 Park Lane, Garden City, Michigan 48135, U.S.A.
TRIANGLE SPECIAL PRODUCTS GROUP
(MILLER SPECIAL TOOLS)
DIVISION OF THE TRIANGLE CORPORATION
CANADA .
b’f CANADA
1, CHRYSLERThe special service tools referred to herein are required for certain service operations. These special
service tools
or their equivalent, if not obtainable through a local source are available through the following outlet.
C 8r D Riley Enterprises Ltd., P.O. Box 243, Amherstburg, Ontario N9V 224INTERNATIONAL
!!!hif INTERNA’IIONAL
1, CHRYSLERThe special service toOk referred to herein are required for certain service operations. These special
service tools
or their equivalent, if not obtainable through a local source are available through the following outlet.
32615 Park Lane, Garden City, Michigan 48135, U.S.A.
TRIANGLE SPECIAL PRODUCTS GROUP
(MILLER SPECIAL TOOLS)
DIVISION OF THE TRIANGLE CORPORATION