6-1-56 ENGINE GENERAL INFORMATION AND DIAGNOSIS (SFI FOR G13)
Fig. 1
HO2S-1
Output
voltage
1 cycle time
Response time
DTC P0133 HEATED OXYGEN SENSOR (HO2S) CIRCUIT SLOW RESPONSE
(SENSOR-1)
WIRING DIAGRAM/CIRCUIT DESCRIPTION – Refer to DTC P0130 section.
DTC DETECTING CONDITION
POSSIBLE CAUSE
D When running at specified idle speed after engine
warmed up and running at specified vehicle speed,
response time (time to change from lean to rich or
from rich to lean) of HO2S-1 output voltage is about
1 sec. at minimum or average time of 1 cycle is 5 sec.
at minimum. See. Fig. 1
: 2 driving cycle detection logic, Monitoring once/1
driving.
D Heated oxygen sensor-1 malfunction
DTC CONFIRMATION PROCEDURE – Refer to DTC P0130 section.
INSPECTION
STEP ACTION YES NO
1 Was “ENGINE DIAG. FLOW TABLE” performed? Go to Step 2. Go to “ENGINE DIAG.
FLOW TABLE”.
2 Is there DTC(s) other than HO2S-1 (DTC P0133)? Go to applicable DTC
Diag. Flow Table.
Replace HO2S-1.
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