1900 MITSUBISHI DIAMANTE sensor

.
4-14 DRIVEABILITYAND EMISSIONS CONTROLS
93154pm Fig. 75 Unplug the TP sensor connector
Fig. 76 The TP sensor is secured with two
retaining bolts sor to be beyond the scope of the do-it-yourself me- The camshaft position sensor on these engines is
chanic. The sensor can be monitored with an appro2 located in the distributor. Refer to the distributor re-
oriate scan tool usina a data disolav or other data moval and installation procedure in Section 2.
stream information. hollow the instructions included
with the scan tool for information on accessing the
data.
REMOVAL &INSTALLATION 3.01 DDHC Engine
p See Figure 78
1. Disconnect the negative battery cable.
2. Remove the timing belt, as outlined in Section
1,6L, 2.01 DDHC and 1997-00 I .8L Engines
1 I Disconnect the negative battery cable.
2. Detach the electrical throttle body stay.
3. Remove the sensor retaining screws.
4. Remove the sensor assembly from the engine.
To install:
5. Install the sensor in the opening in the engine
and tighten the sensor retaining screws.
6. Install the throttle body stay.
7. Attach the electrical connector to the sensor.
8. Connect the negative battery cable.
1.5L, 2.41, 3.OL SDHC, 3.5L, and 1993-96
1.8L Engines
ti See Figure 77 3 of this manual.
3. Unplug the sensor connector.
4. Unfasten the retaining bolts, then remove the
sensor from the vehicle.
5. Installation is the reverse of the removal proce-
dure.
OPERATION
The Crankshaft Position (CKP) sensor (also re-
ferred to as the crank angle sensor) senses the crank
angle (piston position) of each cylinder and converts
Failure to install the TP sensor in this man-
ner may result in sensor damage or high idle
speeds.
,
*The TP sensor is not adjustable. camshaft position sensor)
=1541po9 5. Install and tighten the sensor mounting
“n,zw.m JU cw3, 6. Connect the wiring harness to the sensor.
7. Connect the negative battery cable. Fig. 77 The CMP sensor Is built into the distributor-l .8L engine shown
Camshaft position
sensor
OPERATION
I
The computer control module uses the Camshaft
.
Position (CMP) sensor to determine the position of
the No. 1 piston during its power stroke. This signal
is used by the computer control module to calculate
fuel injection mode of operation.
If the cam signal is lost while the engine is run-
ning, the fuel injection system will shiffto a calcu-

lated fuel injected mode based on the last fuel injec-
93154gll
tion pulse, and the engine will continue to run. Fig. 78 CMP sensor mounting-3.01 DDHC engine
TESTbiG
This sensor produces an A/C voltage signal based
on information gathered while the engine is running.
Testing the CMP sensor requires several special
tools that are very expensive to purchase. Due to this
fact, we at Chilton have determined testing this sen-

DRIVEABILITYAND EMlSSlONSCONTROiS 4-15
it into a pulse signal. The PCM receiv
es this signal
and then computes the engine speed ad controls the
fuel injector timing and ignition timing based on this
input.
TESTING
This sensor produces a pulse signal based on in-
formation gathered while the engine is running. Test-
ing the CKP sensor requires several special tools that
are very expensive to purchase. Due to this fact, we at
Chilton have determined testing this sensor to be be-
yond the scope of the do-it-yourself mechanic. The
sensor can be monitored with an appropriate scan
tool using a data display or other data stream infor-
mation Follow the instructions included with the
scan tool for information on accessing the data.
REMOVAL<jSTALLATlON
2.OL SDHC and 1990-96 1.5L Engines are built
89574ga3 into the
9 See Figure 79
The CKP sensor on these engines is located in the
distributor. Refer to the distributor removal and in-
stallation procedure in Section 2.
1.6L and 2.OL DDHC Engines
b See Figure 80
1. Disconnect the negative battery cable.
2. Detach the electrical throttle body stay.
3. Remove the sensor retaining screws,
4. Remove the sensor assembly from the engine.
To install:
5. Install the sensor in the openina in the enaine
and tighten the sensor retaining’screvk -
6. Install the throttle body stay,
7. Attach the electrical connector to the sensor.
8. Connect the negative battery cable.
1.8L, 2.4L, 3.OL (SOHC and DOHC), 3.5L,
and 1997-00 1.5L Engines
b See Figures 81 and 82
1. Disconnect the negative battery cable.
2. Remove the timing belt, as outlined in Section
3 of this manual.
3. Unplug the sensor connector.
4. Unfasten the retaining bolts, then remove the
sensor from the vehicle.
5. Installation is the reverse of the removal proce-
dure. ’ Fig. 81 Remove the two CKP sensor retain-
Fig. 82 Remove the sensor and slide the re-
1 / gfne shown, others similar ’ -1 ing bolts-2 4L engine shown others sim-
ilar . ’ luctor wheel off of the crankshaft-2 4L en

EMISSIONS AND ELECTRONIC CONTROL COMPONENT LOCATIONS-l .8L ENGINE
1. Mass Air Flow (MAF) sensor w/integrated Intake Air Temperature (IAT) sensor 6. Throttle Position (TP) sensor
2. Engine Coolant Temperature (ECT) sensor 7. Manifold Absolute Pressure (MAP) sensor
3. Camshaft Position (CMP) sensor 8. Evaporative emissions purge solenoid
4. Exhaust Gas Recirculation (EGR) valve 9. Positive Crankcase Ventilation (PCV) valve
5. Idle Air Control (IAC) valve (located on underside of throttle body) 10. EGR control solenoid

EMISSIONS AND ELECTRONIC CONTROL COMPONENT LOCATIONS-2.4L ENGINE
1. Crankshaft Position (CKP) sensor
7. Evaporative emissions purge solenoid
2. Positive Crankcase Ventilation (PCV) valve
8. Mass Air Flow (MAF) sensor w/integrated Intake Air Temperature (IAT) sensor
3. Manifold Absolute Pressure (MAP) sensor
9. Idle Air Control (IAC) valve (located on underside of throttle body)
4. Exhaust Gas Recirculation (EGR) solenoid
10. Camshaft Position (CMP) sensor (located inside distributor)
5. Throttle Position (TP) sensor
~11. Engine Coolant Temperature (ECT) sensor
6. Exhaust Gas Recirculation (EGR) valve (located on underside of throttle body)
12. EVAP canister (located under fender)

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4-18 DRIVEABILITYAND EMISSIONS CONTROLS
Name ; Symbol Name j Symbol
I
Arr conditioning compressor clutch relay ; N Heated oxygen sensor (Rear)
j ”
Air condrtioning swatch , s 1 Idle air control motor
/ F
/
Check engrne/Malfunction Indicator lamp
/ Q lgnrtion trmrng adjustment connector
j D
Crankshaft position sensor / M Injector
! O
Data link connector
j p Intake air temperature sensor / K
Distributor (wrth bulk-in camshaft position sensor, , B Manifold absolute pressure sensor
ignition coil and rgnrtron power transistor) I 1 H
Multrport fuel in]ectron (MFI) relay
i T
EGR solenord
i J PaWNeutral positron switch j A
Engine control module
I u I Power steering pressure switch
Engine coolant temperature sensor c / Throttle position sensor
Evaporative emission purge solenoid
I I I (with burl&In closed throttle position switch) / L _
/ G
I
I
- Fuel pump check terminal /
I j E i Vehicle speed sensor (reed switch)
/ R
Heated oxygen sensor (Front)
I w I
i -
Ilectronic engine control component locations-l 51 engine 93154go1

DRIVEABILITYAND EMISSIONS CONTROLS 4-19
Name
Air conditroner relay
Air condrtroner switch
Air flow sensor (rncorporatrng Intake arr temper-
ature sensor and barometric pressure sensor) Symbol Name
Symbol
0 ignition cot1 (power transrstor)
M
H lgnrtion trmtng adjustment terminal
R
A Inhibitor switch
V
Crank angle sensor and top dead center sensor
E Injector K
1 EGR control solenord valve
1 Q 1 MPI control relay
1 N 1
EGR temperature sensor
Engine control unit
Engine coolant temperature sensor
I Fuel pump check terminal J Oxygen sensor F
U Power steering 011 pressure switch I
0 Purge control solenord valve
P
1 T I Self-dragnosis terminal
I s I
I idle posrtron swatch
1 D 1 Throttle positron sensor I c I
Idle speed control servo (stepper motor)
L Vehicle speed sensor (reed swatch)
G
ilectronic engine control component lochions- .6L enuine 93154go;

4-20 , DRIVEABILITYAND EMISSIONS CONTROLS
Name Symbol Name Symbol
Air conditioning compressor clutch relay J Ignition coil (ignition power transistor) F
Air conditlonrng switch 0 Ignition trming adjustment terminal R
Crankshaft positron sensor and camshaft posi- Injector I
tion sensor G
~ Multiport fuel injection relay N
Data link connector s ’
- Oxygen sensor A
EGR solenoid K
~ Park/neutral positron switch M
EGR temperature sensor L
_ Power steering pressure switch
U
Engine control module Q
~ Throttle position sensor
D
Engrne coolant temperature sensor E
Vehicle speed sensor (reed switch) P
Evaporative emrsslon purge solenoid H -
Volume air flow sensor (incorporating intake
Fuel pump check terminal T arr temperature sensor and barometric pres- B
- sure sensor)
Idle speed control motor (closed throttle POW
tron swatch, tdle speed control motor positron
sensor)
! c
93154go: Electronic engine control component locations-2.01 SOHC engine

DRIVEABILITYAND EMISSIONS CONTROLS 4-21
Heated oxygen sensor
c
NOTE
The “Name” column is arranged in alphabetical order.
ilectronic engine control component locations-2.01 DOHC engine