1991 MITSUBISHI ECLIPSE engine oil

CONTROL FUNCTIONS
<1.8L Engine>
NWEEE- -
FunctionAir-fuelIgnitionIdleAir con-FuelPurgeEGRmixture
timingspeedditionercontrol
controlcontrolpower“d”,i2controlcontrol
relaycontrol
Functional elements
control
In-Power supplyXXXXXXX
Put(Ignition switch coupled)
Power supply (battery backup)
XXXXXXXAir flow sensor
XXXX
lgnitron switch ST terminalXXX(start srgnal)Power
steenng oil pressure switchX
Jut- InjectorXlutIdle speed control servoXPower transistor
X
Arr conditioner power relayX
Control relayX
Purge control solenord valveX
EGR control solenoid valveX
NOTE*:
FUEL SYSTEM - Troubleshooting

FUEL SYSTEM - Troubleshootinn
MPI CIRCUIT1.8L
Engine
VSIBLE3ST1REI--
IGNITIONSWITCHtIGl)
c-59
12s
m458
j;WKPUMP
:ONNECTOR
IGNITIONCOIL
ISTOR
CRANK ANGLAND TOP DE!iDCENTER SENSOR
\/---DISTRIBUTOR5ASSEMBLY
'pcuc
n
,L)‘E
;
6
b
E-
5
5
08 C-64/1
tci3j4
I21
------
-.Vr
MPICONTROLRELAY
r
I
h
Lkn
39‘---,
i
lsil12
iz;.
c-65a-66
135-AC-U0514-NC

FUEL SYSTEM - Troubleshootina
1.8L Engine
IGNISWIlIGNISWITJN(IGl)
3-BW
7
7
6
14
1
>
8
l-6'31
;4
i COMBINATION
30
c!
lEfBl
I 2 a C-59,4669@
IGNITION
COIL
7-POWER_ TRANSISTORFCRANK ANGLE
1-63
422 C-66
k8
104 C-64
MPl_-._ -CONTROLUNIT
35AC-U0515-NC

14-22FUEL SYSTEM - Troubleshooting
IGNISW11
:c
c
30
C-------3
CiG
3
a
I
tir
------_
ON(IGl)
3-BW
7
1
J/B
c-45
ENGINE SPEED
ADJUSTMENT
CONNECTOR
1
IGNITION
1-COIL
-J
ION
B-15
r-+c
1
3
ia
3
6
5
c!P
C-69
7
19
54.------.
l--3
5
r3COMBINATIONMETER(TACH0‘
10------ ------09

FUEL SYSTEM - Troubleshootinn
-.
_-
AIR FLOW SENSORr
INTAKK AlN AlNTENPERAIURE PLOUEENBOR BENBORA-36
q_-____-____--_ -----------5
T
14
c
----.19
Ic
21
lfl
2ON3OFF
Y
IDLESWITCH=4 EGR TEMPERATURE ENGINETHROTTLE
fi %i%kES FORPOSITION
CALIFORNIA)
B-08 mB-30 I
Ia
{mc
B-05
mPOWER
STEERING OIL
Pl?l?f;#RE
KX35-AC-UOBlBA-NC

FUEL SYSTEM - MPI System Inspection <1.8L Engine>
outputDiagnosis code
referenceDiagnosis itemCheck item (Remedy)
orderOutput signal patternNo.Memory
7Engine coolantRetainedl Harness and connectortemperature sensor
:-rlrLn- 2’
l Engine coolant temper-
ature sensor
12A0107
8Crank angle sensor
:nn 22
Retainedl Harness and connector
(If harness and connector
are normal, replacedistributor assembly.)
12A0107
9No. 1 cylinder top
dead center sensorH
Lnn 23
Retainedl Harness and connector
(If harness and connector
are normal, replacedistributor assembly.)
12A0107
10Vehicle speed sensor24Retainedl Harness and connector
(reed switch)H
Lu 1 nnJln
l Vehicle speed sensor
(reed switch)
12A0107
11Barometric pressure25Retainedl Harness and connector
sensorH
u I nl-uvln
(If harness and connector
are normal, replace
Lbarometric pressure
12A0107sensor assembly.)
12Ignition timing adjust-36-l Harness and connectorment signalH
LUUI nluvuuL
12R0468
13Injector
:m 41
Retainedl Harness and connector0 Injector coil resistance
12A0105
14Fuel pump42Retainedl Harness and connectorH0 Control relay
LUUUI nn
12A0105
15EGR 43Retainedl Harness and connectorl EGR temperature sensor
H
u u u u-inn
l EGRvalvel EGR valve control sole-Lnoid valve
12A0105l EGR valve control vacuurr
16Normal state---H
Ln
12A0104
NOTEReplace the engine control unit if a malfunction code is output although the inspection reveals that there is no problem with the check
items.