Diagnostic Method
WARNING: This page is about a different variant/trim than selected.
When enable conditions are completed, measure the A/F sensor output A/F value variation period by changing air fuel ratio desired value to lean and rich. Judge NG when this period is long. Judge OK when this period is short.
Judge NG when the malfunction criteria below is completed. Judge OK when the malfunction criteria below is not completed.
Judgment Value
JUDGMENT VALUE
| Malfunction Criteria | Threshold Value |
|---|---|
| Average time of 5 changes from rich to lean, and from lean to rich Response time when noise is detected is not used as data. |
See Map 5 |
Map 5
ENGINE SPEED
| Engine Speed (Ne) (rpm) | 1.75 - 2.25 (milliseconds) | 2.25 - 2.75 (milliseconds) | 2.75 - 3.19 (milliseconds) | 3.19 - (milliseconds) |
|---|---|---|---|---|
| 1800 ≤ Ne < 2100 | 1828 | 1825 | 1828 | 1828 |
| 2100 ≤ Ne < 2500 | 1167 | 976 | 976 | 911 |
| 2500 ≤ Ne < 3000 | 1095 | 976 | 976 | 911 |
| 3000 ≤ Ne | 1095 | 872 | 825 | 825 |
Time Needed for Diagnosis : 2 to 12 seconds
Malfunction Indicator Light Illumination : Illuminates when malfunction occurs in 2 continuous driving cycles.