Diagnostic Method
- Abnormality Judgement
Compare the diagnosed value (fsobd) with the threshold value, and if a condition meeting the malfunction criteria below continues for 10 s x 5 time(s) or more, judge that there is a fault in the fuel system.
Judgement Value
JUDGEMENT VALUE REFERENCE
| Malfunction Criteria | Threshold Value |
|---|---|
| fsobd = (sglmd - tglmda) + faf + flaf | ≥ Value of Map 2 |
| In this case: sglmd = measured lambda | |
| tglmda = target lambda | |
| faf = main feedback compensation coefficient every 64 milliseconds | |
| flaf = main feedback learning compensation coefficient |
MAP 2
MAP SPECIFICATION
| Amount of air (g (oz)/s) | 0 (0) | 2.34375 (0.08) | 4.6875 (0.17) | 7.03125 (0.25) | 9.375 (0.33) | 11.71875 (0.41) | 14.0625 (0.5) |
|---|---|---|---|---|---|---|---|
| fsobdL 1 (%) | 1.4 | 1.4 | 1.368623 | 1.319185 | 1.26975 | 1.265 | 1.265 |
Time Needed for Diagnosis: 10 s x 5 time(s)
Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in 2 continuous driving cycles.
- Normality Judgement
Judge as OK and clear the NG if the continuous time while the following conditions are established is more than the predetermined time.
Judgement Value
JUDGEMENT VALUE REFERENCE
| Malfunction Criteria | Threshold Value |
|---|---|
| fsobd = (sglmd - tglmda) + faf + flaf | < 1.2 |
Time Needed for Diagnosis: 10 s