1989 MITSUBISHI GALANT steering

13-212
FUEL SYSTEM - Troubleshooting
CHECK CHART CLASSIFIED BY PROBLEM SYMPTOMS Starting Idling

stability Driving
>
.c
zx .-
E
EE 2-80’
52FCheck
Itemsz gp ~ =
gif8e
5;ms00 a,L%a‘;E
2
F5i5 .-
5scp ‘-re,t2aDo’6%.fP .xz YPfbz 2 ‘5 uE22
%il= 5
8
8 8gzzg-c$z8
z
Power
supply
and
ignition switch-IGOnI
255
Engine
control
module power ground
@ [ZI
45
Fuel
pumpoI51oulolIioDloiIl258
Jolume
air

flow sensorcam@Ea@@l@EilO[41@ q 261
‘ntake
air

temperature sensor0OlEiiOEtl@ q 263
3arometric
pressure
sensor0@lB@El@ q 266
Fngine coolant temperature sensorEloiIlomoaol7loEloDO@ 268
Throttle
position
sensor
@[email protected]
Closed throttle
position
switch0[51@D@D0[[email protected]
Tamshaft position
sensorOrnOlsl@Elam277,27
Crankshaft
position
sensor@El@[email protected]
gnltion
switch-ST

olzl3oa77
anitlon switch-ST and park/neutral)os,t,on switch @ElODl@ 78
/ehlcle
speed
sensor
00
80
‘ower
steering
oil
pressure
switch081
w conditlonlng swtch andr/C compressor clutch relay0285
knock sensor:Turbo. Non-Turbo From 1992 models>@ q 287
ieated oxygen
sensor
@290.29
njectors
@,[Hl@lzl@lz3@,161@Di080151@El
295
die air
control
motor (stepper
motor)0[63@!zl@al0863298 gnition
coil

and ignition
power transistor 0 m@El @El@ a 302.30’ Evaporative emission
purge
solenoid
0
99
iGR
solenoid@LaOK3@II3101
uel
pressure
solenoid @@Ia@El 307
urbocharger waste gate contrololenoid oE!l
309
‘uel
pressureOD@l5l@D@D012100
312
0:
Warm
engine (Figures
inside
the 0 indicate the checking sequence.)a: Cold engine (Figures
inside
the q indicate
the checking
sequence.)
TSB Revision1

FUEL SYSTEM - Troubleshooting13-213
PROBLEM SYMPTOMS TABLE(FORYOUR
INFORMATION) Item
Symptom
Won’t start The starter IS used to crank the engine, but there is no combustron
withrn

tht(no inrtial combustion)
cylinders, and the engine won’t start.
p Starting problem There is combustion within the cylinders, but then the engine soon stalls.g
$$a combustion, then
5
(Starting takes a long Engine won’t start quickly.
time.)
Idling instability (Rough Engine speed doesn’t remain constant; changes du\
ring idling.idling)Usually, a judgment can be based upon the movement of the tachometer poi\
nter
and the vibration transmitted to the steering wheel, shift lever, body, \
etc. This i:>.ccalled rough idling.=
%zIncorrect idling speed The engine doesn’t Idle at the usual correct speed.
F
Improper
idling continui-
This non-continuity of idling includes the following elements.-0tY (I 1 Die out .._.__... The engine stalls when the foot is taken from the accelerator-Die out
pedal, regardless of whether the vehicle is moving or not.
Pass out(2) Pass out .._.... The engine stalls when the accelerator pedal is depressed 01while it is being used.
Hesitation
Sag
“Hesitation” is the delay in response1Hesitation
of the vehicle speed (engine rpm) thatNormal
occurs when the accelerator is
de-,--pressed in order to accelerate from\alnrtral-’‘** /the speed at which the vehicle is nowz accelerator,’ ’
traveling, or a temporary drop in vehi-8 pedal/*’
,’ ,’
cle speed (engine rpm) during such
acceleration. a
Serious hesitation is called “sag”.
4sAK
m depression .I’
1’
,’*;’ I(,
r-----
4’>
Time
IFUOZ23
Poor acceleration Poor acceleration is inability to obtain an acceleration corresponding t\
o the degree Of
throttle opening, even though acceleration is smooth, or the inability t\
o reach maximum speed.
F Stumbl
e
5
5
Engine rpm response is delayed when
the accelerator pedal is initially de-
pressed for acceleration from the
stopped condition.4
BNormal B
m Initiala acceleratorg pedal
I
’
-2
/#’
01 depression4t’>’ /Idling L’Stumble
IFUO224
ShockThe feeling of a comparatively large impact or vibration when the engine\
isaccelerated or decelerated.
SurgeThis is repeated surging ahead during constant speed travel or during va\
riable speed
travel.
KnockingA sharp sound like a hammer striking the cylinder walls during driving and which
adversely affects driving.
II1 TSB Revision1

FUEL SYSTEM - Troubleshooting13-217
1.25-R
d I11 58 5E--- -.
bb
vv---------_-------___---__-_--__---5-----------------------18
F
1212
sA-08-
8r^ 3
il F
>
I
%
ccl3lo ?B-14 -Al
L 71
Iv/(ENG) (DATA) I f.N I T I ON-.-- . .-.-.-...*-.IJHIH
LINK
IIMINCONNECTOR $flI;,S9MENTVVIVIYXTOR
C-18A-61FRONT SIDE
2 $klB-04
* @g
-e--POWER
STEERING
;;TqsJRE
gg$ssfiMERATURE
(VEHICLES FORCALIFORNIA)
TSB Revision

13-222
FUEL SYSTEM - Troubleshooting
CIRCUIT DIAGRAM (CONTINUED)
< 1990 models>
1.25-R
!Y Act?7 FN2z
2
cs
s
flG_------u----------------y
A-06-9.\c-50/\s 30COMBINATION -LQfj METER
g
h
1B-04
EBi- -
(ENG)

(DATA)
J/B!i%&E%
GNITION
IW%ENTONNECTOR
I
.F
A-61
f&l
&@MERATURE
(VEHICLES FOR
CALIFORNIA)
POWER
I
4
STEERING
mi;T;g;RE &
TSB Revision

13-232FUEL SYSTEM - Troubleshooting
CIRCUIT DIAGRAM (CONTINUED)
< 1992 models (Non-turbo)>
1.25-R7
g:4:
kcR7 e
zR8-A c,.s
$3--.
G
5v
b11“4,
__- -__- ---ys ------YE--
____-__-_-------- ------m--s’
r T1

2
TPOWER
STEERING
g;y'z;RE
@ F
A-06-
(ENG)

(DATA)
DATA LINK
CONNECTOR C-18
m(1
FRONT
SIDE
2
!3
8I
5>2 ,,l
IGNITION
TIMING ADJUSTMENT
CONNECTOR
B-04
1
IElI
A-61
ma EMEMERATURE(VEHICLES FORCALIFORNIA)
I'ROLT(AWD>
TSB Revision

13-242FUEL SYSTEM - Troubleshooting
CIRCUIT DIAGRAM (CONTINUED)
< 1993 models>
sA-OB-
I
6
T
POWERSTEERINGgpX&RE
J/l3
\,\I4c-3
m
clLl
;
z
~~+l~:&--
*.z 3.
110+ v]
(CNG) (DATA
)
C- 18EFRONT SIDE
5V
I
4%_-__-_-_________-----.--
11
r
12g 15g%
1
2
i
F
1
IGNITION
TIMING ADJUSTMENT
CONNECTOR
1
II
E
2 1
2
A-61
ml
%ES&$MERATURE
WEHI CLES FORCALIFORNIA)
E-04
Igig .
TROLP(AWD>
1 TSB RevisionI

FUEL SYSTEM -On-Vehicle Inspection of MFI Components13-251
ON VEHICLE INSPECTION OF MFI COMPONENTS
COMPONENT LOCATION
4 QCiW41QQWPQWQ
I l-+-Y8’
-,..I- - IIII\< I IJ I
/ \lI/--Gl/
El q
I &
q
‘\
P P
6EM0166
MIBYA-A
6FUO843
NameSymbol
NameSymbol
Air conditioning compressor clutch relayKidle air control motor (stepper motor)C
Air conditioning switch0Ignition coil (ignition power transistor)G
Closed throttle position switch (fixed SAS)EIgnition timing adjustment terminalR
Crankshaft position sensor and camshaft posi-HInjectorJtion sensor- Knock sensorYData link connectorS~Multiport
fuel injection relayNEngine control moduleQ-Park/neutral position switch vEngine coolant temperature sensorF-Power steering pressure switchUEGR solenoidL- Throttle position sensorDEGR temperature sensorM-Turbocharger waste gate solenoidXEvaporative emission purge solenoidI~ Vehicle speed sensor (reed switch)PFuel pressure solenoidwVolume air flow sensor (incorporating intakeFuel pump check terminalTair temperature sensor and barometric pres-B- sure sensor)
Heated
oxygen sensorIA I-
NOTE
The “Name” column is arranged in alphabetical order.II TSB
RevisionI

13-284FUEL SYSTEM - On-Vehicle Inspection of MFI Components
(
Check for continuity of the groundcircuit.
. Connector: Disconnected
7FUO497
Repair theharness.
* cm-Ground)
a Harness side connectorCheck the voltage of the output
cir- cut.
. Connector: Disconnected
. Ignition switch: ON
7FUOSOlL
IGNITION SWITCH-ST
Refer to P.13-77.
M13VNAAa
IGNITION SWITCH-ST AND PARK/NEUTRAL
POSITION SWITCHM13YOAc
Refer to P.13-78.
VEHICLE SPEED SENSOR
Refer to P.13-80.
M13YPAAa
POWER STEERING PRESSURE SWITCHM13VQAAa
Refer to P.13-81.
TSB Revision