Page 230 of 2053
M162 ENGINE CONTROLS 1F1 -- 67
D AEW OO M Y_2000
3. Turn the ignition switch to “OFF” position.
4. Disconnect the ECT sensor connector.
5. Turn the ignition switch to “ON” position.
6. Measure the resistance between the ECT sensor terminal pin No. 1 and No. 4.
Temperature (°C)
Specified Value (Ω)
202,500
80322
100185
Notice:Replace wiring and coolant temperature sensor if out of specified value.
Page 247 of 2053

1F1 -- 84 M162 ENGINE CONTROLS
D AEW OO M Y_2000
Oxygen Sensor Signal Voltage Inspection
1. Maintain the engine speed is at idle while the coolant temperature is over 80°C.
2. Measure the oxygen sensor signal voltage between the ECM terminal No. 16 and No. 17.
Specified Value
-- 0.2 ~ 1.0 v
Notice:If the measured value is not within the specified value, the possible cause may be in cable, oxygen sensor or
ECM
Oxygen Sensor Heating Voltage Inspection
1. Maintain the engine speed is at idle while the coolant temperature is over 80°C.
2. Measure the oxygen sensor signal voltage between the ECM terminal No. 11 and No. 9.
Specified Value
11 ~ 14 v
Notice:If the measured value is not within the specified value, the possible cause may be in cable, oxygen sensor or
ECM
Oxygen sensor Heating Current Consumption Inspection
1. Turn the ignition switch to “ON” position.
2. Measure the oxygen sensor heating current consumption between the ECM terminal No. 9 and No. 5.
Specified Value
0.2~2.0A
Notice:If the measured value is not within the specified value, the possible cause may be in cable, oxygen sensor or
ECM
Page 263 of 2053

1F1 -- 100 M162 ENGINE CONTROLS
D AEW OO M Y_2000
KAA1F090
Notice:Before removal, the fuel rail assembly may be
cleaned with a spray-type cleaner, following package in-
structions. Do not immerse the fuel rails in liquid clean-
ing solvent. Use care in removing the fuel rail assembly
to prevent damage to the electrical connectors and in-
jector spray tips. Prevent dirt and other contaminants
from entering open lines and passages. Fittings should
be capped and holes plugged during service.
Important:If an injector becomes separated from the
rail and remains in the cylinder head, replace the injector
O-ring seals and the retaining clip.
12. Remove the injectors and the fuel rail carefully.
13. Remove the fuel injector retainer clips.
14. Remove the fuel injectors by pulling them down and
out.
15. Discard the fuel injector O-rings.
16. Lubricate the new fuel injector O-rings with engine
oil. Install the new O-rings on the fuel injectors.
17. Perform a leak check of the fuel rail and fuel injec-
tors.
18. Installation should follow the removal procedure in
the reverse order.
YAA1F150
ENGINE COOLANT TEMPERATURE
SENSOR
Removal and Installation Procedure
1. Relieve the coolant system pressure.
2. Disconnect the negative battery cable.
3. Disconnect the engine coolant temperature sensor
connector.
Notice:Take care when handling the engine coolant
temperature sensor. Damage to the sensor will affect
the proper operation of the fuel injection system.
4. Remove the engine coolant temperature sensor
from the pump hosing.
Installation Notice
Tightening Torque
30 NSm (22 Ib-ft)
5. Installation should follow the removal procedure in
the reverse order.
Page 304 of 2053
M161 ENGINE MECHANICAL 1B2 -- 11
D AEW OO M Y_2000
15. Disconnect the terminals from starter motor and re-
move the starter motor.
16. Disconnect the engine main harness ground.
17. Disconnect the engine ground wire.
18. Disconnect following sensors connector.
DHFM sensor.
DCoolant temperature sensor.
DKnock sensor.
DCamshaft and crankshaft sensors.
19. After removing the ignition coil cover, disconnect the
ignition coil connector.
20. Remove the harness cover and disconnect the 4 in-
jection valve connectors. Disconnect the main har-
ness.
Page 399 of 2053
1D2 -- 4 M161 ENGINE COOLING
D AEW OO M Y_2000
DIAGNOSIS
SYSTEM LEAKAGE TEST
Tools Required
124 589 15 21 00 Tester
Test Procedure
1. Loosen the cap a little and release pressure and re-
move the cap.
Notice:For the risk of scalding, cap must not be opened
unless the coolant temperature is below 90°C.
2. Fill coolant up to upper edge (arrow) of reservoir.
3. Connect the special tool to the reservoir filler cap and
apply 1.4 bar of pressure.
Tester 124 589 15 21 00
4. If the pressure on the tester drops, check leakage at
the all coolant hoses and pipes and each connec-
tions. Replace or retighten if necessary.
Page 400 of 2053
M161 ENGINE COOLING 1D2 -- 5
D AEW OO M Y_2000
MAINTENANCE AND REPAIR
ON -- VEHICLE SERVICE
COOLANT DRAIN AND FILL UP
Draning & Filling up Procedure
1. Loosen the cap a little and release pressure and re-
move the cap.
Notice:For the risk of scalding, the cap must not be
opened unless the coolant temperature is below 90°C.
2. Loosen the radiator lower drain cock and drain the
coolant.
Notice:Collect the coolant by using a proper container.
3. Drain the coolant from the crankcase by inserting a
hose (dia. 14mm) onto the drain bolt on the side of
crankcase (exhaust manifold) and by loosening the
plug.
Notice
DJust loosen the drain plug to drain the coolant and do
not remove the plug completely.
DCollect the coolant by using the proper container.
Page 408 of 2053
M161 ENGINE COOLING 1D2 -- 13
D AEW OO M Y_2000
Removal & Installation Procedure
1. Drain the coolant.
2. Remove the de-- aeration hose (4), coolant outlet
hose (5) and coolant bypass hose (6).
3. Disconnect the coolant temperature sensor connec-
tor.
4. Unscrew the bolt (1c) and pry off the tensioning de-
vice shock absorber (7).
Installation Notice
Tightening Torque
22.5 -- 27.5 NSm
(16.6 -- 20.3 lb-ft)
5. Unscrow the bolts (1a, 1b) and remove the engine
hanger bracket and thermostat housing.
Installation Notice
Tightening
(1a)9--11NSm
(80 -- 97 lb-in)
Tightening
Torque(1b)22.5 -- 27.5 NSm
(16.6 -- 20.3 lb-ft)
6. Replace the O -- ring with new one.
7. Installation should follow the removal procedure in
the reverse order.
8. Check for leaks in cooling system.
Page 423 of 2053

D AEW OO M Y_2000
SECTION 1F2
ENGINE CONTROLS
CAUTION: Disconnect the negative battery cable before removing or installing any electrical unit or when a
tool or equipment could easily come in contact with exposed electrical terminals. Disconnecting this cable
will help prevent personal injury and damage to the vehicle. The ignition must also be in LOCK unless other -
wise noted.
TABLE OF CONTENTS
Engine and ECM Problem Check Report 1F2 -- 2....
Specifications 1F2 -- 3............................
Engine Data Display Table 1F2 -- 3.................
Fastener Tightening Specifications 1F2 -- 4..........
Fuel System Specification 1F2 -- 5.................
Temperature vs Resistance 1F2 -- 5................
Special Tools and Equipment 1F2 -- 6..............
Special Tools Table 1F2 -- 6.......................
Schematic and Routing Diagrams 1F2 -- 7..........
ECM Wiring Diagram
(2.3L DOHC -- MSE 3.53S) 1F2 -- 7..............
Diagnosis 1F2 -- 14................................
Failure Code Diagnosis 1F2 -- 14.....................
Clearing Failure Codes 1F2 -- 14...................
Failure Codes Table 1F2 -- 14.....................
Ignition System 1F2 -- 18...........................
Ignition Coil 1F2 -- 20.............................
Crankshaft Position (CKP) Sensor 1F2 -- 22.........
Camshaft Position (CMP) Sensor 1F2 -- 26..........
Camshaft Actuator 1F2 -- 30......................
Knock Sensor (KS) 1F2 -- 32......................
Spark Plug 1F2 -- 34.............................
System Voltage 1F2 -- 38.........................
Ignition Switch 1F2 -- 39..........................
Fuel System 1F2 -- 40..............................
Fuel Pump 1F2 -- 42.............................
Fuel Injector 1F2 -- 46............................
Purge Control Valve 1F2 -- 50.....................
Fuel Rail 1F2 -- 52...............................
Fuel Pressure Regulator 1F2 -- 54.................
Induction System 1F2 -- 56..........................
Throttle Valve Actuator 1F2 -- 56...................
Hot Film Air Mass (HFM) Sensor 1F2 -- 60..........
Engine Coolant Temperature (ECT) Sensor 1F2 -- 64.
Accelerator Pedal Module 1F2 -- 68................Cooling Fan 1F2 -- 72............................
A/C Compressor Relay 1F2 -- 73...................
Cruise Control Switch 1F2 -- 74....................
Traction Control System (TCS) 1F2 -- 75............
Stop Lamp Switch 1F2 -- 76.......................
Engine RPM 1F2 -- 77............................
Exhaust System 1F2 -- 78...........................
Catalytic Converter 1F2 -- 78......................
Oxygen Sensor 1F2 -- 80.........................
Engine Control Module 1F2 -- 86.....................
Serial Data Communication 1F2--88...............
Internal Failure 1F2 -- 90..........................
Electronic Throttle Controller Safety
Malfunction 1F2 -- 92...........................
Immobilizer 1F2 -- 94.............................
Maintenance and Repair 1F2 -- 95..................
On -- Vehicle Service 1F2 -- 95........................
Discharging the Pressure in Fuel System 1F2 -- 95...
Fuel Pump 1F2 -- 95.............................
Fuel Filter 1F2 -- 96..............................
Fuel Tank 1F2 -- 97..............................
Fuel Pressure Regulator 1F2 -- 98.................
Fuel Rail and Injector 1F2 -- 99....................
Engine Coolant Temperature Sensor 1F2 -- 100......
Throttle Body (Integrated with the
Actuator) 1F2 -- 101............................
Hot Film Air Mass (HFM) Sensor 1F2 -- 102.........
Knock Sensor 1F2 -- 102..........................
Pedal Position Sensor 1F2 -- 103...................
Oxygen Sensor 1F2 -- 103........................
Purge Control Valve 1F2 -- 104....................
Canister 1F2 -- 104...............................
Camshaft Position Sensor 1F2 -- 104...............
Crankshaft Position Sensor 1F2 -- 105..............
Engine Control Module 1F2 -- 105..................