Abnormality Judgment
Calculate the estimated exhaust gas temperature when the diagnostic enable condition is established. Judge as NG when the following conditions are established after engine starting within the predetermined time.
JUDGMENT VALUE CHART
| Malfunction Criteria | Threshold Value |
|---|---|
| Estimated exhaust gas temperature | < Value from Map |
MAP REFERENCE CHART
| Coolant temperature after starting the engine | -30 °C (-22 °F) | -20 °C (-4 °F) | -10 °C (14 °F) | 0 °C (32 °F) | 10 °C (50 °F) | 20 °C (68 °F) | 30 °C (86 °F) | 40 °C (104 °F) | 50 °C (122 °F) | 60 °C (140 °F) |
| Estimated exhaust gas temperature | 200 °C (392 °F) | 200 °C (392 °F) | 200 °C (392 °F) | 225 °C (437 °F) | 225 °C (437 °F) | 220 °C (428 °F) | 210 °C (410 °F) | 200 °C (392 °F) | 190 °C (374 °F) | 190 °C (374 °F) |
Time Needed for Diagnosis: 14 seconds
Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in 2 continuous driving cycles.
Judge as NG when the following conditions are established after the predetermined time.
JUDGMENT VALUE CHART
| Malfunction Criteria | Threshold Value |
|---|---|
| Continuous time of (Target engine speed - Actual engine speed > -200 RPM) | ≥ 6000 ms |
| Continuous time of (actual retard amount > 20 °CA) | ≥ 0 ms |
Time Needed for Diagnosis: 14 seconds
Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in 2 continuous driving cycles.