Diagnostic Method
Purge control solenoid valve functional diagnosis is performed by monitoring the tank pressure in mode Z.
- Abnormality Judgment
If OK judgment cannot be made, extend Mode Z, and Judge as NG when the following conditions are established after predetermined amount of time.
| Malfunction Criteria | Threshold Value | DTC |
|---|---|---|
| evptez - evptezha | > 0.9 kPa (6.5 mmHg, 0.3 inHg) | P0457 |
| evptezini | ≤ 1.4 kPa (10.7 mmHg, 0.4 inHg) | |
| Time of 2 l (0.53 US gal, 0.44 lmp gal) or more fuel no sloshing | ≥ 40000 ms |
Time Needed for Diagnosis: 0 ms + 3000 ms + 13000 ms
Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in 2 continuous driving cycles.
When judgment for purge control solenoid valve stuck open NG is made, end the evaporative diagnosis. Cancel the evaporative diagnosis when the OK/NG judgment for purge control solenoid valve stuck open cannot be made in Mode Z.
- Normality Judgment
Judge as OK and change to Mode A when the following conditions are established after predetermined time has passed since Mode Z started.
| Malfunction Criteria | Threshold Value | DTC |
|---|---|---|
| evptez - evptezha | ≤ 0.4 kPa (3 mmHg, 0.1 inHg) | P0457 |