Diagnostic Method
Detect the trouble by calculating the time from the completion of the fuel cut to the beginning of the rear oxygen sensor voltage starting to rise.
Judge as NG when the following conditions are established.
MALFUNCTION CRITERIA
| Malfunction Criteria | Threshold Value |
|---|---|
| Rear oxygen sensor output voltage value | < 0.2 V |
Time needed for diagnosis: Value of Map
Map
MAP SPECIFICATION
| Amount of intake air g/s (oz/s) | 10 (0.35) | 12 (0.42) | 18 (0.63) | 32 (1.13) |
| Duration of time (s) | 7.5 | 6.0 | 4.5 | 3.5 |
MAP SPECIFICATION
| Amount of intake air g/s (oz/s) | 10 (0.35) | 12 (0.42) | 14 (0.49) | 22 (0.78) |
| Duration of time (s) | 8.5 | 6.5 | 5 | 3.5 |
Elapsed time: The time since the λ became less than 1 after the end of fuel cut
Malfunction indicator light illumination: Illuminates when malfunction occurs in 2 continuous driving cycles.