1991 MITSUBISHI ECLIPSE fuel filter

14-2FUEL SYSTEM - Specifications
FUEL SYSTEM
SPECIFICATIONS
GENERAL SPECIFICATIONSNW%-
4.8L Engine>
Items
Fuel
Tank capacity
Return system
Filter
Fuel pump
Type
Driven by
Throttle bodyThrottle
bore
Throttle position sensor
Idle speed control servo
Idle position switchMotor position
sensor
Engine control unitIdentification
model No.
For Federal and Canada
For California
SensorsAir flow
sensor
Barometric pressure sensor
Intake air temperature sensor
Engine coolant temperature sensorOxygen
sensor
Vehicle speed sensorInhibitor switch
No. 1 cylinder top dead center sensor
Crank angle sensor
EGR temperature sensor Actuators
Control relay type
Injector type and number
Injector identification mark
Purge control solenoid valve
EGR control solenoid valve
Fuel pressure regulator
Regulated pressure
Specificationsliter
(gal.) 60 (15.9)
Equipped
High pressure type
Electrical, in-tank type
Electric motor
mm (in.) 50 (1.97)
Variable resistor type
Electric motor
Contact type, within idle speed control servo
Variable resistor type
E2T33674
E2T33673
Karman vortex type
Semiconductor diffusion typeThermistor typeThermistor type
Zirconia type
Reed switch type
Contact switch type
Photo interrupter type
Photo interrupter typeThermistor type
Contact switch type
Electromagnetic, 4
N210H
ON/OFF type solenoid valveDuty
cycle type solenoid valve
kPa (psi) 335 (47.6)

FUEL SYSTEM - Specifications14-3
<2.0L DOHC Engine>
ItemsSpecifications
Fuel
Tank capacityliter (gal.) 60 (15.9)
Return systemEquipped
FilterHigh pressure type
Fuel pump
TypeElectrical, in-tank type
Driven byElectric motor
Throttle bodyThrottle
boremm (in.) 60 (2.36)Throttle position
sensorVariable resistor type
Idle speed control servoStepper motor type
The stepper motor type by- ass air controlsystem with the Fast Idle6!rr Valve (FIAV)
Idle position switchContact switch type
Engine control unitIdentification
model No.
For Federal E2T36572
E2T36574
E2T36576
E2T36578
E2T36582
For California E2T3657 1
E2T36573
E2T36575
E2T36577
E2T36581
SensorsAir flow
sensorKarman vortex type
Barometric pressure sensorSemiconductor diffusion-type
Intake air temperature sensorThermistor type
Engine coolant temperature sensorThermistor type
Oxygen sensorZirconia type
Vehicle-speed sensorReed switch typeDetonation
sensor Piezoelectric device type
Top dead center sensorPhoto interrupter type
Crank angle sensorPhoto interrupter type
EGR temperature sensor Thermistor type
Power steering oil pressure switchContact switch type4ctuators
Control relayContact switch type
Resistor identification model No.E8T05873
Injector type and numberElectromagnetic, 4
Injector identification mark N240H
B450L
B390L
Purge control solenoid valveON/OFF type solenoid valve
EGR control solenoid valve Duty cycle type solenoid valve
Fuel pressure control solenoid valve ON/OFF type solenoid valveWaste
gate solenoid valve ON/OFF type solenoid valve

FUEL SYSTEM - SDecifications14-5
-.
Items
Injector coil resistance52

Specifications
13-I 6 [at 20°C (68”F)j
2-3 [at 20°C (68”F)I
TORQUE SPECIFICATIONSN14CC-A
,,-
ItemsINm1 ft.lbs.
Center cover
Oxygen sensor
Engine coolant temperature sensor
Throttle position sensor attaching screws
Idle speed control servo attaching screws <2.0L DOHC Engine>
Delivery pipe mounting bolts
High-pressure fuel hose to delivery pipe
Fuel pressure regulator to delivery pipe
<1.8L Engine>
<2.0L DOHC Engine>
Accelerator cable clamp
Throttle body mounting bolts and nuts
Throttle body stay mounting nut
4ccelerator cable adjusting bolts
Lateral rod attaching bolt
Self-locking nut
Fuel tank drain plug
Electrical fuel pump
Screws
Bolt (at lower side)Gel
gauge unit mounting screws
-ligh pressure hose to electrical fuel pump
iigh pressure hose to fuel main pipe
3attery tray to battery
3attery tray mounting boltGel
main pipe to fuel filter
Zye boltGel filter
mounting bolts
%el pipes clip attaching bolt
Japor pipe assembly mounting bolt
Ianister holder mounting bolt
2.5-3.5
40-50
20-40
1.5-2.5
2.5-4.5
IO-13
4-6
7-l 15-8
8-106-7
IO-137-9
15-2211-16
15-2211-16
4-63-4
80-l 0057-72
21-3115-22
15-2011-14
2-3
9-14
2-3
30-40
30-40
2-3
9-14
30-40
25-35
9-14
9-14
9-14
9-14
2-3
30-36
15-29
1.1-1.8
1.8-3.3
7-9
3-4
1.4-2.2
6.5-10
1.4-2.2
22-29
22-29
1.5-2
7-14
22-29
18-25
7-10
7-10
7-10
7-10
SEALANT AND ADHESIVENMCE-A
Items
Engine coolant temperature sensor threaded portion
Fuel tank hole cover
Specified sealant
MOPAR Part No.4318034 or equivalent
MOPAR Rope Caulk Sealer 3/l 6 x 80” roll Part No.4026044 or equivalent

14-6FUEL SYSTEM - Special Tools/Troubleshooting
SPECIAL TOOLSNWA-B
Number
M D998742
Name
Hose adapter
Usel Measurement
of fuel pressure (to be usedtogether
with MD9987091
MD998709Adapter hosel Measurement of fuel pressure (to be usedtogether
with MD9987421
TROUBLESHOOTING
When checking and correcting engine troubles, it is
important to start with inspection of the basic
systems.
In case you have such troubles as (1) engine start
failure, (2) rough idling or (3) poor acceleration,
therefore, you should first check the following basic
systems:
(1) Power supply
0 Batteryl
Fusible linkl
Fuse
(2) Body ground
(3) Fuel supplyl
Fuel linel
Fuel filter
l
Fuel pump
N14EBBH
(4) Ignition systeml
Spark plugsl
High tension cablel Distributor
<1.8L Engine>
l
Crank angle sensor <2.0L DOHC Engine>
0 Ignition coil
(5) Emission control systeml
Crankcase ventilation systeml
Exhaust gas recirculation systeml
Vacuum leak
(6) Others
0 Ignition timing
l
Idle speed
Troubles with the MPI system are often caused by
poor contact of harness connector. It is, therefore,
important to check harness connector contact.

14-46FUEL SYSTEM - Service Adjustment Procedures <1.8L Engine>
Condition
Fuel pressure too low
Fuel pressure too highProbable causea. Clogged fuel filter
b. Fuel leaking toward return port due to
Remedy
a. Replace fuel filter.
improper seating of valve in fuel pressure
b. Replace fuel pressure regulator.
regulatorc. Low delivery pressure of fuel pump
c. Replace fuel pump.
a. Stuck valve in fuel pressurea. Replace fuel pressure regulator.
regulator
b. Clogged or bent fuel return hose or pipeb. Repair or replace hose or pipe.
‘.
Fuel pressure witha. Clogged or broken vacuum hose or nipple
a. Repair or replace the vacuum hose or
vacuum hose connectednipple.
not different from fuel
pressure with vacuum
b. Stuck valve in fuel pressure regulator orb. Replace fuel pressure regulator.
hose not connecteddefective valve seating
(13)Stop the engine and check for change in fuel pressure
gauge indication, which should not drop.
If the gauge indication drops, observe the rate of drop and
determine and remove the causes according to the
following table.
ConditionProbable causeRemedy
Fuel pressure dropsLeakage from injectorReplace injector.
slowly after engine is
stopped.
rqFuel pressure drops im-Check valve in fuel pump does not closeReplace fuel pump.
mediately after engine is
stooped.
(14)Reduce the fuel pressure in the fuel line.
(16)Disconnect the high pressure fuel hose and remove the
fuel pressure gauge from the delivery pipe.
Caution
Cover the hose connection with shop tdwel to prevent
splash of fuel that could be caused by residual pressure
in the fuel pipe line.
(16)Mount a new O-ring in the groove at the end of the high
pressure fuel hose.
(17)Connect the high pressure fuel hose to the delivery pipe,
and tighten the screws to the specified torque.
(18)Check for fuel leaks.
@ Apply battery voltage to the fuel pump check terminal
to operate the fuel pump.
@ With fuel pressure acting, check the fuel line for leaks.
-

14-54FUEL SYSTEM - Service Adjustment Procedures <2.0L Engine>
(11)Race the engine repeatedly in two or three series. Then
check that the fuel pressure does not fall when the engine
is running at idle.
(12)Check to be sure that there is fuel pressure in the return
hose also (by gently pressing the fuel return hose with a
finger while repeatedly racing the engine).
NOTEThere will be no fuel pressure in the return hose when the
volume of fuel flow is not sufficient.
(13)lf the results of the measurements made in steps (9) and
(10) above are not within the standard value, use the table
below to determine the probable cause, and then make the
necessary repair.
Condition
Fuel pressure too lowProbable causeRemedy
a. Clogged fuel filtera. Replace fuel filter.
b. Fuel leaking toward return port due tob. Replace fuel pressure regulator.
improper seating of valve in fuel pressure
regulator
c. Low delivery pressure of fuel pumpc. Replace fuel pump.
Fuel pressure too higha. Stuck valve in fuel pressure
a. Replace fuel pressure regulator.regulator
b. Clogged or bent fuel return hose or pipeb. Repair or replace hose or pipe.
Fuel pressure witha. Clogged or broken vacuum hose or nipplea. Repair or replace vacuum hose or
vacuum hose connected
nipple.
not different from fuel
pressure with vacuumb. Stuck valve in fuel pressure regulator or
b. Replace fuel pressure regulator.
hose not connecteddefective valve seating
(14)Stop the engine and check for change in fuel pressure
gauge indication, which should not drop.
If the gauge indication drops, observe the rate of drop and
determine and remove the causes according to the
following table.
Condition
Fuel pressure drops
slowly after engine is
stopped.Probable cause
Leakage from injectorRemedy
Replace injector.
Fuel pressure drops
im-Check valve in fuel pump does not closeReplace fuel pump.
mediately after engine is
stopped.
(15)Reduce the fuel pressure in the fuel line.
(16)Disconnect the high pressure fuel hose and remove the
fuel-pressure gauge from the delivery pipe.
Caution
Cover the hose connection with shop towel to prevent
splash of fuel that could be caused by residual pressurein the fuel pipe line.
(17)Mount a new O-ring in the groove at the end of the high
pressure fuel hose.

14-102FUEL SYSTEM - Fuel Line and Vapor Line
FUEL LINE AND VAPOR LINEREMOVAL AND INSTALLATION
NuKn-
rPre-removal Operationl Removal of the Batten/ Trav(Refer to GROUP 8-Starter Motor)ORelease of Residual Pressure from High
Pressure Hose.(Refer to
P.14-44.)
1Post-installation Operation*Measurement of Fuel Pressure (Refer toP.1444, 52.)l lnstallatron of the Battery Tray(Refer to GROUP 8-Starter Motor)4-6
Nm25-35 Nm3-4 ft.lbs.16-25 ftlbs.9-14 Nm7-10
ftlbs.
I
7-9-14
Nm30-40 Nm7-10 ft.lbs.22-29 ft.lbs.
9-14 Nm
7-10 ftlbs.
9-14Nm7-10 ft.lbs.9-h Nm
7-10ft.lbs.9-i4 Nm7-10ft.lbs.9-14
Nm7- 10ft.lbs.25-35
Nm16-25 ft.lbs.
7-10 ft.lbs. 7-10 ft.lbs.
7- 10 ft.lbs.Removal steps
l *1. Eye boltl + 2. High pressure fuel hose+e l + 3. Fuel filterI)+ 4. Fuel return hose
5. Check valve
6. Clamp~~ 7. Fuel vapor hose
8. Vapor pipe assembly
9. Canister
10. Canister holderl * l * 11.Clamp
12. Fuel main pipe
13. Fuel return pipe
14. Fuel vapor pipe
NOTE(I) Reverse the removal procedures to reinstall.(2) +e : Refer to “Service Points of Removal”.(3) l * : Refer to “Service Points of Installation”.(4) m : Non-reusable parts

-.FUEL SYSTEM
- Fuel Line pnd Vapoi- @f&
L
Mounting
bolts
pipe
03FOOO
!-03FOO7 [SERVICE. POINTS
OF REMOVALN14KSAl.a1. REMOVAL OF EYE BOLT
Remove the eye bolt while holding the’ fuel filter nut
securely.
Caution.Cover the hose connection with
ragS: to prevent splash
of fuel that could be
caked by some residual pressure
in the fuel pipe line.
3. REMOVAL OF FUEL FILTER
(1) Loosen the main pipe blare nut-while holding the fuel
filter nut securely.
(2) Remove the fuel filter mounting bolts, and then remove
the fuel filter from the bracket.
11. REMOVAL OF CLAMP
!After removing the crossmember, remove the clamp.
(Refer to GROUP
2-Centermember and CrossmeTber.),.
INSPECTIONNi&CABl Check the hose and pipes for cracks, bend,
d,eforrnatiorrand clogging.
l Check the canister for clogging.
1l Check the fuel filter for clogging and damage.
SERVICE
POINTS OF INSTALLATION~aNl4KDAl11. INSTALLATION OF CLIP
(1) Insert the clip.
(2) Insert the crossmember. (Refer to GROUP
2-Center-member and Crossmember.),. ,,$l
”7. INSTALLATION OF FUEL VAPOR
HOSE/4. FUEL RE-
TURN HOSE
(1) If the fuel pipe has a stepped part, connect the fuel
hose to the pipe securely, up to the stepped part, as
shown in the figure.
(2) If the fuel pipe does not have a stepped part, connect
the fuel hose to the pipe securely, so that it is the
standard value.Standard value:
20-25 mm (.&I.0 in.)