Abnormality Judgment

Judge as NG (large leakage) when the following conditions are established.

JUDGMENT VALUE CHART

Malfunction Criteria	Threshold Value	DTC
Time to reach target negative pressure	≥ 10000 ms + 25000 ms	P0457
or
Mode B time	≥ 10000 ms
(Min. pressure value in tank when in mode B) - (Tank pressure when mode B started)	> -0.5 kPa (-4 mmHg, -0.2 inHg)

Time Needed for Diagnosis: 5000 ms + 3000 ms + 10000 ms + 10000 ms + 25000 ms

Mode C: (Check pressure rise)

Stop the introduction of negative pressure. (Wait until the tank pressure returns to the start level of P2 calculation.)

Change to Mode D when the tank pressure returns to the start level of P2 calculation.

Judge immediate OK and change to Mode E when it does not return in spite of spending the specified time.

Tank pressure when starting calculation of P2	Time for advanced OK judgment
-1.3 kPa (-9.75 mmHg, -0.4 inHg)	14013 ms

Time Needed for Diagnosis: 5000 ms + 3000 ms + 10000 ms + 10000 ms + 25000 ms + 14013 ms

Judge as NG when the following conditions are established within the predetermined time. Judge as OK and clear the NG if the following conditions are not established within the predetermined time.

JUDGMENT VALUE CHART

Malfunction Criteria	Threshold Value	DTC
P2 - 1.5 - x P1 P2: Tank pressure that changes every 10000 ms in mode D P1: Tank pressure that changes every 10000 ms in mode A	> Value of Map 8	P0442
*1.5 -: Evaporation amount compensation value when below negative pressure (Amount of evaporation occurrence increases as a vacuum condition increases.)

MAP 8 MALFUNCTION CRITERIA LIMIT FOR EVAPORATION DIAGNOSIS

Fuel temperature vs. Fuel level	15 °C (59 °F)	25 °C (77 °F)	35 °C (95 °F)	45 °C (113 °F)
10.5 l (2.77 US gal, 2.31 Imp gal)	0.3 kPa (2.1 mmHg, 0.1 inHg)	0.3 kPa (2.1 mmHg, 0.1 inHg)	0.3 kPa (2.3 mmHg, 0.1 inHg)	0.3 kPa (2.4 mmHg, 0.1 inHg)
27 l (7.13 US gal, 5.94 Imp gal)	0.3 kPa (2.32 mmHg, 0.1 inHg)	0.3 kPa (2.5 mmHg, 0.1 inHg)	0.4 kPa (2.73 mmHg, 0.1 inHg)	0.4 kPa (2.88 mmHg, 0.1 inHg)
43 l (11.36 US gal, 9.46 Imp gal)	0.4 kPa (2.88 mmHg, 0.1 inHg)	0.4 kPa (2.97 mmHg, 0.1 inHg)	0.4 kPa (3.23 mmHg, 0.1 inHg)	0.5 kPa (3.43 mmHg, 0.1 inHg)
59.5 l (15.72 US gal, 13.09 Imp gal)	0.5 kPa (3.5 mmHg, 0.1 inHg)	0.5 kPa (3.5 mmHg, 0.1 inHg)	0.5 kPa (3.5 mmHg, 0.1 inHg)	0.5 kPa (3.7 mmHg, 0.1 inHg)

Time Needed for Diagnosis: 5000 ms + 3000 ms + 10000 ms + 10000 ms + 25000 ms + 14013 ms + 10000 ms

Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in 2 continuous driving cycles.