| Detection Criteria | Thresholds |
|---|---|
| A. Following conditions met | (a) and (b) |
| (a) Fuel tank pressure at vacuum introduction start | 2.0 kPa (-15 mmhg) or more |
| (b) Difference between fuel tank pressure at vacuum introduction start and completion | Less than 0.5 kPa (4 mmHg) |
| B. Following conditions met | (a) and (b) |
| (a) Difference between minimum fuel tank pressure before leak check and fuel tank pressure at 14 seconds after leak check | 0.5 kPa or more (3.5 mmHg) |
| (b) Fuel tank pressure at 14 seconds after leak check | Less than - 3.7kPa (-28 mmHg) |
TYPICAL MALFUNCTION THRESHOLDS