Adjustment idle MITSUBISHI GALANT 1989 Service User Guide
[x] Cancel search | Manufacturer: MITSUBISHI, Model Year: 1989, Model line: GALANT, Model: MITSUBISHI GALANT 1989Pages: 1273, PDF Size: 37.62 MB
Page 131 of 1273
ENGINE
f”.53A51b;m
r----v 1
3
lo-12 Nm
11-16
ftlbs.80-100
Nm y~x-di
58-72ft.lbs.2234!?!I
212543-55Nm 31-40, ff.lbs.b&-.,\‘-
/20-27 Nm
14-20
ftlbs.110;130 Nm80-94
ftlbs.
Installation steps
38. Timing belt rear left cover (lower)1H37. Engine support bracket
36. Timing belt rear left cover (upper)
35. Timing belt rear right cover
+4 34. Crankshaft sprocket “B”l * 33. Spacer32. Silent shaft sprocketI)+ 31. Timing
belt “B”l *Adjustment of timing belt “B” tension
30. Tensioner “B”
~~ 29. Flangel C 28. Crankshaft sprocket27. Special washer
26. Crankshaft sprocket bolt
~~ 25. Oil pump sprocket
l 24. Camshaft sprocket 23. Idle pulley
l + 19. Auto tensioner22. Tensioner arm+a 21. Tensioner pulley*C 20. Timing beltI)*Adjustment of timing belt tension
18. Plug rubber
17. Semi-circular packing
16.
Rocker cover
15. Connection for spark plug cables
14. PCV hose
13. Breather hose
!_-;
‘3
6
\
3,“”
30-42 Nm22-30 ftlbs.
125
50-60 Nm36-43 ftlbs.OlA0435
sl Service Adjustment Procedures
12. Center cover~~ 11, Timing belt front lower cover
l + IO. Timing belt front upper cover
9. Crankshaft pulley
8. Water pump pulley
7. Drive belt (air conditioning) (Refer to P.l
I-61 .)6. Tensioner pulley bracket
5. Drive belt (power steering)
(Refer to
P.ll-61.)4. Drive belt (generator)
(Refer to P.l
I-61 .)3. Engine mount bracket
2. Bracket1. Clamp for pressure hose (power steering) and high pressure hose (air conditioning)
NOTE+I: Vehicles built up to NOV. 1988+2: Vehicles built from Dec. 1988
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Page 143 of 1273
13-1
FUEL
CONTENTSM’ISAA--
AUTO-CRUISE CONTROL SYSTEM.............
.
332
AUTO-CRUISE CONTROL ............................. 408
SERVICE ADJUSTMENT PROCEDURES .................397
Accelerator Cables
inspectron and Adjustment ........
.
398 Auto-cruise
Control System Inspection
..............397
Individual Parts Inspection ......................
401SPECfAL
TOOLS
.....................................
333
SPECIFICATIONS .................................... 332
TROUBLESHOOTING ................................. 334
Auto-cruise Control Components Location ..........368
Auto-cruise Control
Related Harnesses
..........365
Check Chart
Check Chart
Circuit Diagram ................................
371input Checking................................
.
366
On-board Diagnostic Checking ......................
361Troubleshooting Quick-reference Chart
.
334
Troubleshooting Quick-reference Chart
ENGINE CONTROL...............................
.
328
ENGINE CONTROL ..................................
330
SERVICE ADJUSTMENT PROCEDURES .................329
Accelerator Cable inspectron and Adjustment
...........329
Accelerator Switch Inspection and Adjustment ..........329
SPECIFICATIONS ....................................
328
TROUBLESHOOTlNG................................
.
328
Accelerator
Cable and Accelerator Pedal .............
.
328
FUEL SYSTEM
FUEL FILTER .........................................
327
FUEL LINE AND VAPOR LINE
.
326
FUEL LINE AND VAPOR LINE
.
324
FUEL TANK
.
322
FUELTANK
.
318
GENERAL INFORMATION ............................ 196
ON-VEHICLE INSPECTION OF MFI
COMPONENTS
......251
Air Conditioning Switch and A/C Compressor Clutch Relay .....................................
285
Barometric Pressure Sensor .................... 266
Boost Meter
311Camshaft Position Sensor ........................
.
277Closed Throttle Position Switch
.....................
.
274
Component Location .............................
251Components Inspection Pocedure
................. 255
Crankshaft Position Sensor ..................... 280EGR
Solenord
...................
.
307EGR Temperature Sensor
.............
.
288Engrne Control Module Power Ground
................
.
257
Engine Coolant Temperature Sensor ..................
268Evaporative Emission Purge Solenoid .................
.
307
Fuel Pressure Solenoid
307Fuel Pressure Test...............................
.
312
Fuel Pump ...................................... 258
Heated Oxygen Sensor ............................ 290
Idle Air Control Motor (Stepper Motor) ................
238Ignition Coil and Ignition Power Transistor .............
.
302
Ignition Switch-ST .................................. 284
Ignition Switch-ST and Park/Neutral Position Switch .....284
Injectors .......................................
295Inspection of Engine Control Module Terminal
Voltage .......................................
.
315
Intake Air Temperature Sensor .......................263
Knock Sensor
Power Steering Pressure Switch ......................
284Power Supply and Ignition Switch ...................
.
255Resistor
..............................
.
298Terminal Voltage Check Chart
......................
.
315Throttle Position Sensor
..........................
.
270Turbocharger Waste Gate Solenoid
.........
.
309 Vehicle
Speed Sensor
............................... 284
Volume Air Flow Sensor ............................
261SERVICE ADJUSTMENT PROCEDURES ...............
.
245
Basic
idle Speed Adjustment .......................
.
245
Closed Throttle Position Switch (Fixed
SAS)Adjustment ......................................
.
250
Curb
Idle Speed Inspection
..........................245Throttle Body (Throttle Valve Area) Cleaning
...........
.
248Throttle Position Sensor Adjustment
..................
.
248
SPECIALTOOLS...................................
.
204
SPECIFICATIONS ...................................
201TROUBLESHOOTING ...............................
.
205
Check Engine/Malfunction Indicator Lamp ..............205
Circuit Diagram .................................... 214
Clear Memory of Diagnostic Trouble Code .............
211Explanation and Precaution Related to Harness
Checking ......................................
.
205Explanation of Troubleshooting Procedures
............
.
205Failsafe/Back-up Functions List
.....................
.
211Fuel tank and Fuel Line
............................
.
244
Read Out Diagnostic Trouble Code ...................
211Troubleshooting Table
.............................
.
208(CONTINUED ON NEXT PAGE)
Page 144 of 1273
13-2
FUEL SYSTEM
..........
FUEL FILTER ....................................
FUEL LINE AND VAPOR LINE .....................FUELTANK....................................
.
GENERAL INFORMATION ........................
ON-VEHICLE INSPECTION OF MFI
COMPONENTS . .
Air
Conditionrng Switch and A/C CompressorClutch Relay ......
.
.............
Barometric Pressure Sensor .........
Camshaft Position Sensor ...........
Closed Throttle Position Switch ...........
Component Location .............
Components
Inspectron Procedure .......
.
Crankshaft Positron Sensor ............
EGR Solenoid
. . .3. .
115..,.113
. 109
. . 3
. . . 38
83
536961384173101EGR Temperature Sensor
.
85
Enqine Control Module Power Ground ......
.
....
45
Engine Coolant Temperature Sensor ...............
55Evaporative Emission Purge Solenord..............
.
99
Fuel Pressure ...............................
102Fuel Pump
...................................
.
46
Idle Speed Control Motor (DC Motor) ................
.
93
Idle Speed Control Motor Positron Sensor ............
.
64
lgnitron Co11 and Ignition Power Transistor .........
.
96
Ignition Switch-ST ..........................
77Ignition Switch-ST and Park/Neutral Position Switch
...78
Injectors..................................
.
90
Inspection of
Engrne Control Module Terminal
Voltage .........
.
..........................
105Intake Air Temperature Sensor ..................
.
51Oxygen Sensor
............................
.
87Power Steering Pressure Switch
..................
.
81Power Supply
.........................
.
42
Terminal Voltage Check Chart ......................
106Throttle Positron Sensor.....................
.
57Vehicle Speed Sensor
.........................
.
80
Volume Air Flow Sensor .........................
49
SERVICE ADJUSTMENT PROCEDURES .................
32
Basic
Idle Speed Adjustment ...................
.
33
Curb Idle Speed Inspection ..........................
32Throttle Body (Throttle Valve Area) Cleaning........
.
35
Throttle Positron Sensor Adjustment ................
35
SPECIAL TOOLS 7
.................
...................
SPECIFICATIONS ....................................
5
TROUBLESHOOTING .................................
8
Check Engine/Malfunction Indicator Lamp ..............
10Crrcuit Diagram.................................
.
20
Clear Memory of Diagnostic Trouble Code ............
17Explanation and Precaution Related to HarnessChecking......................................
.
9Explanation of Troubleshooting Procedures
...........
.
8
Failsafe/Back-up Functions List ....................
16Fuel Tank and Fuel Lrne.........................
.
32Read Out of Diagnostic Trouble Code
...............
.
16Troubleshooting Table
.........................
.
13
FUEL SYSTEM
116
FUEL FILTER .......................................
195
FUEL LINE AND VAPOR LINE ........................
195
FUEL TANK ........................................ 195
GENERAL INFORMATION ............................
116
ON-VEHICLE INSPECTION OF MFI
COMPONENTS
Air Conditioning Switch and A/C Compressor Clutch Relay .............................
Barometric Pressure Sensor .................
Camshaft Position Sensor ....................
Closed Throttle Position Switch ................
Component Location .......................
Components Inspectron Pocedure
..............
Crankshaft Position Sensor .................
EGR Solenoid
EGR Temperature Sensor
Engine Control Module Power Ground ..........
Engine Coolant Temperature Sensor .............
Evaporative Emission Purge Solenoid ............
Fuel Pressure Test ...........................
Fuel Pump ..................................
IAC Valve Positon Sensor
......................
Idle Air Control Motor (DC Motor) ..............
lgnrtion Coil and Ignition Power Transistor
.......
.
Ignition Switch-ST ...........................
Ignition Switch-ST and Park/Neutral Position Switch
Injectors ....................................
Inspection of Engine Control Module Terminal
Voltage .....................................
Intake Air Temperature Sensor .................
Oxygen Sensor .............................
Power Steering Pressure
Swatch..............
.
Power Supply ...............................
Terminal Voltage Check Chart ..................
Throttle Position Sensor .......................
Vehicle Speed Sensor ......................... . . . . 139
176
154
165
16013914216
7
..,_ 191177146
155
189192
147
162
184
186
171172181
192152
179
175
143
192
157
173
Volume Air Flow Sensor ...........................
.
150
SERVICE ADJUSTMENT PROCEDURES
...............
.
133
Basic Idle Speed Adjustment 133
Closed Throttle Position Switch and Throttle Position
Sensor Adjustment .................................
136Curb Idle Speed Inspection
.........................
.
133Fixed SAS Adjustment
.............................
.
138Throttle Body (Throttle Valve Area) Cleaning
...........
.
136
SPECIAL TOOLS
...................................
.
119
SPECIFICATIONS 118
.... ..............................
TROUBLESHOOTING ..................
.............
119
Check Engine/Malfunction Indicator Lamp ..............
120Circuit Diagram...................................
.
128Clear Memory of Diagnostic Trouble Code
............
.
126Explanation and Precaution Related to Harness
Checking ........................................
.
119Explanation of Troubleshooting Procedures
............
.
119Failsafe/Back-up
Fuctions List
........................
126
Fuel Tank and Fuel Line .............................
133Read Out of Diagnostic Trouble Code ................
.
126
Troubleshooting Table ..............................
123
Page 174 of 1273
13-32
FUEL SYSTEM
FUEL TANK AND FUEL LINEMlBEAAA
Symptom Probable cause Remedy
Engtne malfunctions
Bent or kinked fuel pipe or hose Repair or replace3ue to insufficient fuel
SUPPlYClogged fuel pipe or hoseClean or replace
Clogged fuel filter or in-tank fuel filter Replace
Water in fuel filter Replace the fuel filter or clean the fuel tank
and fuel line
Dirty or rusted fuel tank interior Malfunctioning fuel pump
(Clogged filter in the pump) Clean or replace
Replace
Evaporative emission Mispiping of vapor line
Correct
control system malfunc-
tions (When fuel tank Disconnect vapor line piping joint Correct
filler tube cap is re- moved, pressure releas-
Folded, bent, cracked or clogged vapor line Replace
ng noise is heard) Faulty fuel tank filler tube cap
Malfunctioning fuel tank pressure control
valve Replace
Replace
LL
m ~~ : Paper clip-
F l!;“I /yFp- -
izd--_7-01
A0086SERVICE ADJUSTMENT PROCEDURES
CURB IDLE SPEED INSPECTION
MlBFHAFt
(1) The vehicle should be prepared as follows before the inspection.
lEngine coolant temperature: 85-95°C (185-203°F)
l Lights, electric cooling fan and accessories: OFF
l Transaxle: Neutral
(P for vehicles with an automatic
transaxle)
(2) Connect a tachometer or connect the scan tool to the data
link connector.
NOTE
Refer to
P.13-33 for information concerning connection Of
a tachometer.
(3) Set a timing light in position.
(4) Ground the terminal for adjustment of ignition timing.
(5) Start the engine and let it idle.
(6) Check whether or not the ignition timing is the standard
value; if not, adjust.
Standard value:
5”BTDC + 2”
(7) Stop grounding the terminal for adjustment of ignition timing. .
(8) Let the engine idle for two minutes.
(9) Check the idling rpm.
Curb idle speed:
7502 100 rpm
NOTE
The idling rpm is automatically regulated by the idle-speed control system.
1
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Page 175 of 1273
FUEL SYSTEM
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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Page 176 of 1273
13-34 FUEL SYSTEM
(5) Switch ON the ignition switch (but do not start the engine)and leave as if for 15 seconds or longer.
NOTE
When the ignition switch is switched ON, the idle speed
control plunger extends to the fast-idle opening degree,
and, after 15 seconds have passed, contracts to the initialposition and stops there.
Initial position: the suitable idling position at which the idle speed control motor position sensor output
voltage is
0.9V.
--\\screw 6FU1404(6) Switch OFF the ignition switch.
(7) Disconnect the connector of the idle-speed control motor, and then secure the
ISC motor at the initial position.
(8) Sufficiently loosen the fixed SAS.
(9) Start the engine and let it idle.
(10)Check the basic idling speed.
If the scan tool is used, select
No.22 and then read the id-
ling speed.
Basic idling speed: 750
+-50 rpm
NOTE
The engine speed may be 20 to 100 rpm lower than
indicated above for a new vehicle [driven approximately
500 km (300 miles) or less], but no adjustment is necessary.If the engine stalls or the rpm is low even though the
vehicle has been driven approximately 500 km (300 miles) or more, it is probable that deposits are adhered to the
throttle valve, so clean it. (Refer to
P.13-35.)
(1l)lf there is a deviation from the standard value, turn the en-
gine speed adjustment screw to make the adjustment.
NOT
E
When the engine speed adjustment screw is turned to make the adjustment, use a hexagonal wrench if possible,
and, in order to prevent backlash of the screw, make the
final adjustment at the tightening side.
(12)Tighten the fixed SAS until the engine speed increases;
then return the fixed SAS to find the point (the “touch
point”) at which the engine speed does not decrease.
Then, from that point, return the fixed SAS and additional
one-half turn. (13)Switch
OFF the ignition switch.
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Page 177 of 1273
FUEL SYSTEM
(14)Adjust the play of the accelerator cable. (Refer to P.13-
329.)
(15)Connect the idle-speed control motor’s connector.
(16)Adjust the throttle-position sensor.
(17)Start the engine again and let it run at idle speed for about
ten minutes; check to be sure that the idling condition is
normal.
THROTTLE BODY (THROTTLE VALVE AREA)
CLEANING
MllFlCK
(1)Start the engine and warm it up until the temperature of the
engine coolant reaches
80°C (176°F) or higher; then stop
the engine.
(2) Disconnect the air intake hose at the throttle body side.
(3) Spray cleaning liquid (from the intake port of the throttle body) onto the valve, and then leave as is for about fiveminutes.
(4) Start the engine and race it a few times; then let it run at idle speed for about one minute.
NOTE
If the engine idling speed is unstable (or the engine stalls),
let the engine run with the throttle valve slightly open.
(5) If deposits are not removed from the throttle valve, repeat steps (3) and (4).
(6) Connect the air intake hose.
(7) Using the scan tool, erase the diagnostic trouble code, or disconnect the battery’s ground cable for ten seconds orlonger and then reconnect it.
(8) Adjust the basic idle speed (engine speed adjusting screw). (Refer to
P.13-33.)
(9) Adjust the throttle position sensor.
(2) If a scan tool is not used, perform the following operation.
< 1989 models> @ Disconnect the throttle position sensor connector and
use the special tool (test harness) between the discon-
nected connector.
r1 TSB Revision
THROTTLE POSITION SENSOR ADJUSTMEiW&
Caution
The adjustment of the throttle-position sensor should be
made after completion of the basic idle-speed adjustment.
(1) Connect the scan tool to the data link connector (white).
,
Page 178 of 1273
13-36 FUEL SYSTEM
:I989 models>
M
D9684783FUO179
@ Connect a digital type voltmeter between terminal @
(blue clip, sensor output) of the throttle position sensor
and terminal
@I (red clip, sensor ground).
@I Disconnect the throttle position sensor connector and use the special tool (test harness set) between the
disconnected connector.
@ Connect a digital type voltmeter between terminal @
(sensor output) of the throttle position sensor and
terminal
@I (sensor ground).
1 FU0619
(3) Switch ON the ignition switch (but do not start the engine) and leave as is for 15 seconds or longer.
NOTE
When the ignition switch is switched ON, the idle speedcontrol plunger extends to the fast-idle opening degree,
and, after 15 seconds have passed, contracts to the initial
position and stops there.Initial position: the suitable idling position at which the idle speed control motor position sensor output
voltage is 0.9 V.
(4) Check the throttle-position sensor’s output voltage. If the scan tool is used, select No. 14 and then read the
throttle-position sensor’s output voltage.
Standard value: 0.48-0.52
V
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Page 179 of 1273
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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Page 180 of 1273
13-38
FUEL SYSTEM
ON-VEHICLE INSPECTION OF MFI
COMPONENTS
COMPONENT LOCATION
Ii111 I‘I 1 II
bEM0148
6FUO843
M?BYA-
Name Symbol Name
Symbol
Air conditioning compressor clutch relay
JIgnition coil (ignition power transistor)F
Air conditioning switch 0Ignition timing adjustment terminalR
Crankshaft position sensor and camshaft posi- InjectorIGtion sensor-Multiport fuel injection relayN
Data link connectorS - Oxygen sensor
A
EGR solenoid
K-Park/neutral position switch M
EGR temperature sensor
L-Power steering pressure switchU
Engine control moduleQ- Throttle position sensorD
Engine coolant temperature sensorE- Vehicle speed sensor (reed switch)P
Evaporative emission purge solenoidHVolume air flow sensor (incorporating intake
Fuel pump check terminalTair temperature sensor and barometric pres-B
-sure sensor)
Idle speed control motor (closed throttle posi-
tion switch, idle speed control motor position
Csensor)
NOTEThe “Name” column is arranged in alphabetical order
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