Diagnostic Method
WARNING: This page is about a different car, the 2012 Subaru Forester. However, it is still accessible from the selected car via links, so may be relevant.
- Abnormality Judgment
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.
Judgment Value
JUDGMENT VALUE REFERENCE CHART
| Malfunction Criteria | Threshold Value |
|---|---|
| fsobd = (sglmd - tglmda) + faf + flat In this case: sglmd = measured lambda tglmda = target lambda faf - main feedback compensation coefficient every 64 milliseconds flaf = main feedback learning compensation coefficient |
< Value of Map 2 |
AIR PRESSURE REFERENCE CHART
| 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) |
| fsobdL1 (%) | 0.6 | 0.6 | 0.63137 | 0.68082 | 0.71025 | 0.72525 | 0.73025 |
Time Needed for Diagnosis: 10 s x 5 time(s)
Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in 2 continuous driving cycles.
- Normality Judgment
Judge as OK when the malfunction criteria below continues for 10 seconds.
Judgment Value
JUDGMENT VALUE REFERENCE CHART
| Malfunction Criteria | Threshold Value |
|---|---|
| fsobd = (sglmd - tglmda) + faf + flaf | ≥ 0.8 |
Time Needed for Diagnosis: 10 s