Malfunction Threshold
The ratio of the current EGR flow to the normal EGR flow is 20 % or less for at least 3.5 seconds.
The ratio is derived from the actual and estimated MAP values before and after the EGR valve was opened.
The estimated MAP difference value is shown in the table.
MALFUNCTION THRESHOLD
| Engine speed | Barometric pressure | |
| 52 kPa (15.4 inHg, 390 mmHg) | 102 kPa (30.0 inHg, 760 mmHg) | |
| 1,100 rpm | 13 kPa (3.7 inHg, 95 mmHg) | 35 kPa (10.4 inHg, 265 mmHg) |
| 3,000 rpm | 4 kPa (1.2 inHg, 32 mmHg) | 13 kPa (3.9 inHg, 100 mmHg) |