Abnormality Judgment
Compare the diagnosed value (fsobd) with the threshold value, and if a condition where the malfunction criteria are met continues for more than 50 seconds, judge that there is a fault in the fuel system.
Judgment Value
MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE
| Malfunction Criteria | Threshold Value |
|---|---|
| fsobd = (sglmd - tglmda) + fan + flaf | ≥ fsobdR1 |
| In this case: sglmd = measured lambda, tglmda = target lambda, fan = main feedback compensation coefficient (every 64 milliseconds), flaf = main feedback learning compensation coefficient | Refer to . fsobdR1 = rich side threshold value of fsobd |
Map 4
MAP 4 THRESHOLD VALUE FOR FUEL SYSTEM MALFUNCTION CRITERIA
| Amount of air (g (oz)/s) | 0 (0) | 3.2 (0.113) | 6.4 (0.226) | 9.6 (0.339) | 12.8 (0.451) | 16 (0.564) | 19.2 (0.677) |
| fsobdR1 (%) | -40 | -40 | -31.2 | -26.5 | -26.5 | -26.5 | 26.5 |
Time Needed for Diagnosis: 10 seconds x 5 times
Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in 2 continuous driving cycles.