Diagnostic Method
Detect a malfunction by measuring the time from fuel cut completed until the rear oxygen sensor voltage begins to rise.
Judge as NG when the following conditions are established.
JUDGMENT VALUE SPECIFICATION SPECIFICATION
| Malfunction Criteria | Threshold Value |
|---|---|
| Output voltage value of rear oxygen sensor Elapsed time |
Less than 0.2V More than value of Map |
AVERAGE VALUE OF INTAKE AIR AMOUNT - MAP
| Average value of intake air amount g/s(oz/s)) |
19.00 (0.67) | 20.00 (0.71) | 21.00 (0.74) | 22.00 (0.78) |
|---|---|---|---|---|
| Elapsed time (ms) | 4580 | 4480 | 4000 | 4000 |
Time needed for diagnosis: Less than 1 s
Malfunction indicator light illumination: Illuminates when malfunction occurs in 2 continuous driving cycles.