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28 CHECK “CO” %
With CONSULT-II
1. Start engine and warm it up until engine coolant temperature indicator points to the middle of gauge.
2. Turn ignition switch “OFF”, wait at least 10 seconds and then turn “ON”.
3. Select “ENG COOLANT TEMP” in “ACTIVE TEST” mode.
4. Set “ENG COOLANT TEMP” to 5°C (41°F) by touching “DWN” and “Qd”.
5. Start engine and rev it (2,000 to 3,000 rpm) two or three times under no-load, then run engine at idle speed.
6. Check “CO” %.
SEF172Y
Idle CO: 0.7 - 9.9 % and engine runs smoothly.
OK or NG
OK © GO TO 31.
NG © GO TO 30.
29 CHECK “CO” %
Without CONSULT-II
1. Start engine and warm it up until engine coolant temperature indicator points to the middle of gauge.
2. Turn ignition switch “OFF”.
3. Disconnect engine coolant temperature sensor harness connector.
4. Connect a resistor (4.4 kΩ) between terminals of engine coolant temperature sensor harness connector.
5. Start engine and rev it (2,000 to 3,000 rpm) two or three times under no-load, then run engine at idle speed.
6. Check “CO” %.
Idle CO: 0.7 - 9.9 % and engine runs smoothly.
7. After checking “CO” %, turn ignition switch “OFF”, disconnect the resistor from the terminals of engine coolant tempera-
ture sensor harness connector, and then connect engine coolant temperature sensor harness connector to engine cool-
ant temperature sensor.
SEF982UA
OK or NG
OK © GO TO 31.
NG © GO TO 30.
30 RECONNECT HEATED OXYGEN SENSOR 1 HARNESS CONNECTOR
1. Turn ignition switch “OFF”.
2. Reconnect heated oxygen sensor 1 harness connector.
© GO TO 34.
GI
MA
EM
LC
FE
CL
MT
AT
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
BASIC SERVICE PROCEDURE
Idle Speed/Ignition Timing/Idle Mixture Ratio Adjustment (Cont’d)
EC-69
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