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Malfunction Threshold

The ratio of the current EGR flow to the normal EGR flow is 15 % 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.

Engine speed [ENGINE SPEED] Barometric pressure
52 kPa (15.4 inHg, 390 mmHg) 101 kPa (29.9 inHg, 760 mmHg)
1, 200 RPM*1 10.4 kPa (3.1 inHg, 78 mmHg) 14.3 kPa (4.3 inHg, 107 mmHg)
2, 000 RPM*1 6.6 kPa (2.0 inHg, 49 mmHg) 9.9 kPa (3.0 inHg, 74 mmHg)
1, 100 RPM*2 8.2 kPa (2.4 inHg, 61 mmHg) 15.9 kPa (4.7 inHg, 119 mmHg)
2, 000 RPM*2 4.0 kPa (1.2 inHg, 30 mmHg) 9.6 kPa (2.9 inHg, 72 mmHg)