1989 MITSUBISHI GALANT lock

FUEL SYSTEM -Service Adjustment Procedures 13-33
For a female
pin
For a male pin
(insert at side (Insert at lock tab side.,
opposite from lock tab.)
OlLO246
(10)lf not within the standard value range, refer to the CHECK
CHART CLASSIFIED BY PROBLEM SYMPTOMS and check the
MFI component.
BASIC IDLE SPEED ADJUSTMENT
MlBFHBA
(1) The vehicle should be prepared as follows before the inspection and adjustment.
l Engine coolant temperature:
85-95°C (185-205°F)
l Lights, electric cooling fan and accessories: OFF
l Transaxle: Neutral
(P for vehicles with an automatic
transaxle)
(2) Slacken the accelerator cable enough.
(3) Connect the scan tool to the data link connector (white).
(4) If the scan tool is not used, follow the steps below.
@I Insert a paper clip (from the harness side) into the l-pin connector shown in the figure at the left.
Take care not to disconnect the connector.
Caution
The paper clip should be inserted between the
terminals as shown in the figure at the left., @ Connect a primary-voltage-detection type of tacho-
meter to the paper clip.
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FUEL SYSTEM (SOHC-8 VALVE> -Service Adjustment Procedures 13-37
--
MO-L
6FU1405
(5) If there is a deviation from the standard value, loosen the
throttle-position sensor installation bolt and then turn the
throttle-position sensor itself to make the adjustment. Be
sure to securely retighten the bolt after making the
adjustment.
NOTE
lThe output voltage becomes higher when the throttle-
position sensor is turned clockwise.
lA diagnostic trouble code for idle speed control motor position sensor may be output when adjusting the
throttle position sensor. The reason is that, when the
throttle position sensor is turned, the throttle position sensor voltage may differ from the normal voltage dur-
ing idling, but this is no malfunction of the idle speed
control motor position sensor.
(6) Switch OFF the ignition switch. (7) If a diagnostic trouble code is output when adjusting the throttle position sensor, use the scan tool and erase the di-
agnostic trouble code or first disconnect the battery (-)
cable from the battery terminal for IO
seconds or more and
then reconnect it. (This will erase the memory for the diag- nostic trouble code due to adjustment of the throttle posi-
tion sensor.)
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FUEL SYSTEM - On-Vehicule Inspection of MFI Components13-57
INSTALLATION
(1) Apply sealant
3M
NUT locking No.41 71 or equivalent to
threaded portion.
(2) Install engine coolant temperature sensor and tighten it to specified torque.
Sensor tightening torque:
20-40 Nm (15-29 ft.lbs.1
(3) Fasten harness connectors securely
THROTTLE POSITION SENSOR

-(‘Throttle position a\“ ’
6FUO637
TerminalvoltageWI
L
Minimum Maximum01 LO838Throttle shaft turning angle162461
Component side
Throttle position sensor
connector
olAO336
Engine control module connector Ml3YJAE
OPERATION
l
The throttle-position sensor functions to convert0When the throttle valve shaft is rotated all the
the degree of opening of the throttle valve to way from the idling position to the fully open
voltage, and to input that voltage (as signals) to position, the resistance between the throttle-
the engine control module. The engine control position sensor’s variable-resistapce
terminal
module, based upon those signals, then regu-
and the ground terminal also increases in
lates the amount of fuel injection, etc. accordance with that rotation, and, as a result,0The 5V power supply within the engine control
the voltage of the throttle-position sensor’s
module is supplied to the throttle-position sen-
variable-resistance terminal also becomes high-
SOT after which it passes through the
resistanceer in
accordance with that rotation.
w&in the sensor and is grounded at the engine
COMO\
module.
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13-66 FUEL SYSTEM -On-Vehicule Inspection of MFI Components
Harness
sde
connectorI
OlAO362
@ Harness sideconnector
Engine control
module harnessside connector
I-
r
MD9984646FUO666
MD9984646FUo666
A
Check for continuity of the groundcircuit.
. Connector: Disconnected
t
Repair theharness.

l&l)
Check for an open-circuit, or a short-circuit to ground between the engine
control module and the idle speed
control motor position sensor.
* Engine control module connector:f-
A
1
Disconnected
. idle speed control motor position sensor connector: Disconnected Repair the
harness.
~@[z1-8)
I
SENSOR INSPECTION
Disconnect the idle speed control motor position sensor
connector, and connect the special tool (test harness) to
the connector on idle speed control motor position sensor side.
Measure the resistance between terminal
@ (black clip of
special tool) and terminal
0 (white clip) of the idle speed
control motor position sensor connector.
Standard value: 4-6
kS2
(3) Disconnect the idle speed control motor connector.
(4) Connect a
6V DC power supply between terminals 0 and
@ of the idle speed control motor connector to activate
(extend and retract) the idle speed control motor. Measure
the resistance between terminal
@ (black clip of special
tool) and terminal
0 (red clip) of the idle speed control
motor position sensor connector.
Standard value: Smooth increase/decrease in ac-
cordance with extension and retrac-
tion of idle speed control motor
plunger.
Caution
Apply only a 6V DC or lower voltage. Application of
higher voltage could cause locking of the servo gears.
(5) If there is a deviation from the standard value, or if the change is not smooth, replace the idle speed control motor
assembly.
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13-68 FUEL SYSTEM -On-Vehicule Inspection of MFI Components
Engine control
module harness
side connectorCheck for an open-circuit, or a short-circuit to ground, between the enginecontrol module and the idle speedcontrol motor position sensor.
. Engine control module connec-tor: Disconnected. Idle speed control motor positionsensor connector: Disconnected
0
O
K
1
ASTOP
i
Repair theharness.
KzEwDlfl,
!
Idle speed control motor
position sensor connector6FU1252
Idle speed control
motor connector
\A 6FU1253
-
SENSOR INSPECTION
(1) Disconnect the idle speed control motor position sensor
connector.
(2) Measure the resistance between terminals
@ and 0.
Standard value: 4-6 k&2
I) Disconnect the idle speed control motor connector.
.) Connect DC 6V between terminals @ and @ of the idle
speed control motor connector, and then measure the re-
sistance between terminals
@ and @ of the idle speed
control motor position sensor connector when the idle
speed control motor is activated (caused to expand and
contract).
Standard value: Smooth increase/decrease in ac-
cordance with expansion and con-
traction of the idle speed control
motor plunger.
Caution
Apply only a 6V DC or lower voltage. Application of
higher voltage could cause locking of the servo gears.
(5) If there is a deviation from the standard value, or if the change is not smooth, replace the idle speed control motor
assembly.
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13-94 FUEL SYSTEM - On-Vehicule Inspection of MFI Components
1
Idle speed control
motor connector
Idle speed control
motor connector6FUO750
6FUO9&
ACTUATOR INSPECTION
(1) Disconnect the idle speed control motor connector.
(2) Check continuity of the idle speed control motor coil.
Measuring terminals Continuity
0-0 Conductive
5 to 359 resistance at 20°C (68°F)
(3) Connect 6V DC between terminal @I and terminal @ of the
idle speed control motor connector, and check to be sure
that the idle speed control motor operates.
Caution
Apply only a 6V DC or lower voltage. Application of
higher voltage could cause locking of the servo gears.
(4) If not, replace idle speed control motor as an assembly.
IDLE SPEED CONTROL MOTOR (DC MOTOR) 1990 models>
Component sideconnector
@
43m00
Engine control module
77V s
.-:
z'Zc
EE
sI2
21<\2
Idle speedcontrol motor
MlOYUAG
Engine control module connector
6FU1275
OPERATION
TROUBLESHOOTING HINTS
Refer to P. ? 3-93.
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FUEL SYSTEM -On-Vehicule inspection of MFI Components13-95
HARNESS INSPECTION
3 Harness
side
connector
Engine control
module harness
sde connector
+6FU1276
I I
Lit02
Idle speed controlmotor connector6FU1277
6FU1253
Check for an open-circuit, or a short-circuit to ground between the engine
control module and the idle speed
control motor.
Repair the
-+ harness.
OZGII-8@m-8)
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ACTUATOR INSPECTION
(1) Disconnect the idle speed control motor connector.
(2) Check continuity of the idle speed control motor coil.Measuring terminals Continuity
0-0 Conductive
5 to 3552 resistance at 20°C (68°F)
(3) Connect 6V
DC between terminal @
and terminal @ of the
idle speed control motor connector, and check to be sure
that the idle speed control motor operates.
Caution
Apply only a 6V
DC or lower voltage. Application of
higher voltage could cause locking of the servo gears.
(4) If not, replace idle speed control motor as an assembly.

FUEL SYSTEM - Fuel Tank13-109
FUEL TANK MlSGA-
{EMOVAL AND INSTALLATION
r
30-40 N

m
22-?9
ft.lbs.
2-3 Nm
1.4-2.2,ft.lbs.IP
2-3 N
m
1.4-2.2 f-Lit
6.5-10
ft.lbs.
!I17-26 N

m
12- 19
ft.lbs.
Removal steps 1. Fuel tank filler tube cap
2. Drain plug
l + 3. Return hosel + 4. Vapor hose5. Fuel gauge unit connector
6. Electrical fuel pump connector
l +7. High pressure hose to fuel pump connection
l + 8. Filler hosel +9. Vapor hosel + 10. Self-locking nut11, Tank band stay12. Tank band13. Fuel tankl 4 14. Vapor hosee+ 15. Fuel tank pressure control valve
16. Fuel gauge unit
17. Electrical fuel pump
18. Fuel tnak filler tube
i8
03A0142
Caution
When disconnecting the high pressure fuel hose, cover
the hose connection with rags to prevent splash of fuel that could be caused by some residual pressure in the
fuel pipe line.
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