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23 CHECK HEATED OXYGEN SENSOR 1 (FRONT) (BANK 1) SIGNAL
With CONSULT-II
1. See “HO2S1 MNTR (B1)” in “DATA MONITOR” mode.
2. Maintaining engine at 2,000 rpm under no-load (engine is warmed up to normal operating temperature.), check that the
monitor fluctuates between “LEAN” and “RICH” more than 5 times during 10 seconds.
SEF999Z
OK or NG
OK © INSPECTION END
NG (Monitor does not
fluctuate.)
© GO TO 27.
NG (Monitor fluctuates
less than 5 times.)
© GO TO 25.
24 CHECK HEATED OXYGEN SENSOR 1 (FRONT) (BANK 1) SIGNAL
Without CONSULT-II
1. Set voltmeter probe between ECM terminal 63 and ground.
2. Make sure that the voltage fluctuates between 0 - 0.3V and 0.6 - 1.0V more than 5 times during 10 seconds at 2,000
rpm.
1 time: 0 - 0.3V → 0.6 - 1.0V → 0 - 0.3V
2 times: 0 - 0.3V → 0.6 - 1.0V → 0 - 0.3V → 0.6 - 1.0V → 0 - 0.3V
OK or NG
OK © INSPECTION END
NG (Voltage does not
fluctuate.)
© GO TO 27.
NG (Voltage fluctuates
less than 5 times.)
© GO TO 25.
BASIC SERVICE PROCEDURE
Idle Speed/Ignition Timing/Idle Mixture Ratio Adjustment (Cont’d)
EC-62
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