1990 MITSUBISHI SPYDER fuel pump

Name
Air conditioning compressor clutch relay
Air conditioning switchSymbol Name
air control motor
coil power transistor)
Camshaft position sensor
Check engine/Malfunction indicator lamp
Crankshaft position sensor
Data link connectorIgnition power transistor
injector
Manifold differential pressure sensor
EGR solenoid fuel relavI I
Engine control module (ECM)
Engine coolant temperature sensorPark/Neutral position switch
Power steering pressure switch
Evaporative emission purge solenoid
Fuel
check terminal
Throttle position sensor (with
throttle position switch)
Fuel pump relay
Fuel pump relay module
Heated oxygen sensor (Front)
Heated oxygen sensor (Rear)Vehicle speed sensor.
Vehicle speed sensor
Volume air flow sensor (with
temperature sensor and barometric pressure
sensor)
NOTE
The “Name” column is in alphabetical order.

Volume air flow sensor
side connector
Intake air temper-
ature sensor
FUEL INJECTION
AND FUEL PUMP RELAY
1.
2.
3.
4.
5.
Remove the relay.
Check the continuity between the
Inspection terminals
2 - 4
Continuity
70
Use the jumper leads to connect relay terminal 4 to
battery terminal and terminal to termi-
nal.
Check the continuity between relay 1 3 while
connecting and disconnecting the
‘at bat-
tery terminal.
Jumper leadContinuity 3
ConnectedContinuity
Disconnected No continuity
If there is a defect, replace
relay.
.
INTAKE AIR TEMPERATURE SENSOR CHECK
13106260676
1.Disconnect the volume air flow, connectors.
2. Measure resistance between
5
Temperature
(32)
20 (66)
60 (176)5.3-6.7
3.Measure resistance while heating the sensor using a hair
drier.
Temperature
Higher
4. If resistance does not decrease as heat the
resistance remains unchanged, replace the volume ai r
flow sensor assembly.

FUEL SUPPLY Fuel Tank
13500010032
(1) The fuel tank is located under the floor of the The fuel tank AWD from a high
rear seats to provide increased safety. density: pol yethylene
material and
(2)A fuel cut-off valve has been’adopted to preventblow-formed an ‘tank.
fuel from leaking out in the event of a collision.
Specifications
Fuel tank capacity (gals.)
Fuel pump type64 (16.9)
Electrical, in-tank type
ItemsStandard value.
Fuel tank differential pressure sensor output volta ge 2.0 3.0 ,
Test harness set pressure sensor
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FUEL SUPPLY -‘Fuel Tank
SymptomProbable cause
Engine malfunctions
Bent or kinked fuel pipe or hose Repair or replace
due to insufficient fuelClogged fuel pipe or hoseClean or replace
Clogged fuel filter or in-tank fuel filter
Water in fuel filter
Dirty or rusted fuel tank interior
Replace. .
Replace the fuel filter or clean the fuel
tank and fuel line
Clean or replace
Malfunctioning fuel pump
(Clogged filter in the pump)
Evaporative emission Mispiping of vapor line .
control system mal-
functions Disconnected vapor line piping joint
(When tank filler tube
cap is removed, pres-
Folded, bent, cracked or clogged vapor line
sure releasing noise is
heard)Faulty fuel tank filler tube cap Replace
Correct
CorrectReplace
Revision I

FUEL SUPPLY Tank
FUEL TANK
REMOVAL AND INSTALLATION
Engine (Non-turbo)>34
2.5 Nm
251.8
2.5 Nm
Removal steps
1. Fuel tank
2. High-pressure fuel hose
3. Return hose
4. Fuel pump assembly
5. Fuel gauge unit
6. Fuel cut-off valve assembly
7. Vapor hose
8. Fuel tank filler tube cap9. Filler hose10. Vapor hose
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11. Fuel tank filler tube protector12. Reinforcement13. Fuel tank filler tube assembly14. Packing
NOTE
When replacing the fuel pump assembly or the fuel g auge
unit only, it is possible to work from the service halesunderneath the rear seat cushion without having toremove the fuel tank. (Refer to

SUPPLY ‘Fuel Tank
Enaine
(Refer to GROUP On-vehicle Service.)
2.5 Nm1.8
Removal steps
1. Fuel tank
2. Vapor hose
3. High-pressure fuel hose
4. Return hose
, ,
12. Fuel tank filler protector
14. Fuel tank’ assembly Packing
5. Fuel pump 6. Fuel gauge unit
7. Fuel cut-off valve assembly
6. Vapor hose
.
NOTE
When replacing the fuel or the gaugeunit only, it is possible to work from the holesunderneath the rear seat without having to
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Engine>FUEL SUPPLY
Fuel
(Refer to GROUP On-vehicle Service.)
2.5Nm1.8
25 Nm
Removal steps
1.Fuel tank2. Vapor hose
3. High-pressure fuel hose
4. Return hose
5. Fuel tank differential pressuresensor6. Fuel pump assembly
7. Fuel gauge unit
8. Fuel cut-off valve assembly 9. Vapor hose
lo. Fuel tank filler cap
11. Filler hose
1
13. Fuel tank filler tube protector14. Reinforcement 15. tank tube assembly16. Packing
When replacing pump fuel gauge
unit only, it is possible to work from the service holes
underneath the rear seat, without having toremove the fuel tank. (Refer
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FUEL SUPPLY Fuel Tank
Pre-removal Operation
Pressure of Fuel (Refer to GROUP On-vehicle Service.) Il . . . . .
and Hose.
Post-installation Operationl Propeller Installation to GROUP 25 Propeller
Fuel Leaks
Propeller Shaft.)
13
Nm
.
13
25
4936
Removal Steps
1. Heated oxygen sensor connection
2. Center exhaust pipe
3.Protector4.Band5.Fuel tank6. High-pressure fuel hose7.Return hose8.Suction hose9. Pipe 10. Cap11. Fuel gauge unit and pumpassembly gauge unit and pipe assembly
14. hose
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Revision
Shaft.)
15. Fuel cut-off valve assembly16. Fuel tank filler tube cap
17. Filler hose
18. Vapor hose19.Fuel tank filler tube protector
20. Reinforcement21. Fuel tank filler tube assembly
22. Packing
NOTEWhen replacing the fuel gauge unit and pumpor the fuel gauge unit and pipe assembly only, it is to work from the service holes rear seatcushion without having to remove the fuel tank. (Refer to