Quest Minivan GXE V6-3.3L (VG33E) (2002)
Oxygen Sensor: Testing and Inspection
Component Inspection
HEATED OXYGEN SENSOR 1 (FRONT)
With CONSULT-II
1. Start engine and warm it up to normal operating temperature.
2. Select "MANU TRIG" and "HI SPEED" in "DATA MONITOR" mode with CONSULT-II, and select "HO2S1 (B1)" and "HO2S1 MNTR (B1)".
3. Hold engine speed at 2,000 rpm under no load during the following steps.
4. Touch "RECORD" on CONSULT-II screen.
5. Check the following.
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"HO2S1 MNTR (B1)" in "DATA MONITOR" mode changes from "RICH" to "LEAN" to "RICH" 5 times in 10 seconds. 5 times (cycles) are
counted:
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"HO2S1 (B1)" voltage goes above 0.6 V at least once.
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"HO2S1 (B1)" voltage goes below 0.3 V at least once.
-
"HO2S1 (B1)" voltage never exceeds 1.0 V
CAUTION:
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Discard any heated oxygen sensor which has been dropped from a height of more than 0.5 m (19.7 in) onto a hard surface such as a concrete floor;
use a new one.
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Before installing new oxygen sensor, clean exhaust system threads using Oxygen Sensor Thread Cleaner tool J-43897-18 or J-43897-12 and
approved anti-seize lubricant.