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4 CHECK HEATED OXYGEN SENSOR 1 HEATER (FRONT) Refer to “Component Inspection”, EC-QG-170. OK or NG OK © GO TO 5. NG © Replace heated oxygen sensor 1 (front). 5 CHECK HEATED OXYGEN SENSOR 1 (FRONT) Refer to “Component Inspection”, EC-QG-149. OK or NG OK © GO TO 6. NG © Replace heated oxygen sensor 1 (front). 6 CHECK INTERMITTENT INCIDENT Perform “TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT”, EC-QG-102. © INSPECTION END Component Inspection NLEC0118 HEATED OXYGEN SENSOR 1 (FRONT) NLEC0118S02 With CONSULT-II 1) Start engine and warm it up to normal operating temperature. 2) Select “MANU TRIG” in “DATA MONITOR” mode, and select 3) Hold engine speed at 2,000 rpm under no load during the fol- 4) Touch “RECORD” on CONSULT-II screen. 5) Check the following. I “HO2S1 MNTR (B1)” in “DATA MONITOR” mode changes from I “HO2S1 (B1)” voltage goes above 0.6V at least once. I “HO2S1 (B1)” voltage goes below 0.3V at least once. I “HO2S1 (B1)” voltage never exceeds 1.0V. CAUTION: I Discard any heated oxygen sensor which has been I Before installing new oxygen sensor, clean exhaust sys- SEF646Y SEF647Y DTC P0132 HEATED OXYGEN SENSOR 1 (FRONT) (RICH SHIFT MONITORING) QG16 I 18DE Diagnostic Procedure (Cont’d) EC-149 |