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Judgment Value

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Malfunction Criteria Threshold Value DTC
(Tank pressure when Mode Z started) -(Tank pressure when Mode Z finished) ≥ 0.4 kPa (3 mm Hg, 0.12 inHg) P0457


MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Malfunction Criteria Threshold Value DTC
(Tank pressure when Mode Z started) - (Tank pressure when Mode Z finished) > 0.6 kPa (4.5 mmHg, 0.18 inHg) P0457
Tank pressure when Mode Z started ≥ 1.43 kPa (10.7 mmHg, 0.42 inHg)  
Time of 2 or more fuel no sloshing ≥ 40 seconds  

Time Needed for Diagnosis:  16 seconds

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.



MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Malfunction Criteria Threshold Value DTC
Time to reach target negative pressure ≥ 35 seconds P0457
Or mode B time ≥ 10 seconds  
(Min. pressure value in tank when in mode B) - (Tank pressure when mode B started) < -0.33 kPa (-2.5 mmHg, -0.097 inHg)  

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 SPECIFICATION

Tank pressure when starting calculation of P2 Time for advanced OK judgment
-1.3 kPa (-9.75 mmHg, -0.38 inHg) 18.5 seconds

Mode D: (Measure amount of negative pressure change) 

Monitor the tank pressure change amount when using mode D. In this case, the tank pressure increases, (nears barometric pressure) because evaporation occurs. However, if any leakage exists, the pressure increases additionally in proportion to this leakage. The pressure variation of this tank is P2.

After calculating P2, perform a small leak diagnosis according to the items below.



MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Malfunction Criteria Threshold Value DTC
P2-1.5 x P1 > Value from Map 7 P0442
P2: Tank pressure that changes every 10 seconds in mode D (1) Threshold value: Map (Remaining Fuel vs Tank temperature)  
P1: Tank pressure that changes every 10 seconds in mode A    
(1) Evaporation amount compensation value when below negative pressure (Amount of evaporation occurrence increases as a vacuum condition increases.)

Map 7 Malfunction criteria limit for evaporation diagnosis 

MAP 7 MALFUNCTION CRITERIA LIMIT FOR EVAPORATION DIAGNOSIS

Fuel temperature vs. Fuel level 25°C (77°F) 30°C (86°F) 35°C (95°F) 40°C(104°F) 45°C(113°F)
10 L (2.6 US gal, 2.2 Imp gal) 0.28 kPa (2.1 mmHg, 0.083 inHg) 0.29 kPa (2.2 mmHg, 0.086 inHg) 0.31 kPa (2.3 mmHg, 0.092 inHg) 0.313 kPa (2.35 mmHg, 0.0924 inHg) 0.32 kPa (2.4 mmHg, 0.095 inHg)
20 L (5.3 US gal, 4.4 Imp gal) 0.31 kPa (2.3 mmHg, 0.092 inHg) 0.32 kPa (2.4 mmHg, 0.095 inHg) 0.33 kPa (2.5 mmHg, 0.097 inHg) 0.35 kPa (2.6 mmHg, 0.103 inHg) 0.36 kPa (2.7 mmHg, 0.106 inHg)
30 L (7.9 US gal, 6.6 Imp gal) 0.39 kPa (2.9 mmHg, 0.115 inHg) 0.407 kPa (3.05 mmHg, 0.12 inHg) 0.42 kPa (3.15 mmHg, 0.124 inHg) 0.43 kPa (3.25 mmHg, 0.127 inHg) 0.447 kPa (3.35 mmHg, 0.132 inHg)
40 L (10.6 US gal, 8.8 Imp gal) 0.39 kPa (2.9 mmHg, 0.115 inHg) 0.42 kPa (3.15 mmHg, 0.124 inHg) 0.44 kPa (3.3 mmHg, 0.13 inHg) 0.45 kPa (3.4 mmHg, 0.133 inHg) 0.47 kPa (3.5 mmHg, 0.139 inHg)
50 L (13.2 US gal, 11.0 Imp gal) 0.427 kPa (3.2 mmHg, 0.126 inHg) 0.44 kPa (3.3 mmHg, 0.13 inHg) 0.47 kPa (3.5 mmHg, 0.139 inHg) 0.48 kPa (3.6 mmHg, 0.142 inHg) 0.49 kPa (3.7 mmHg, 0.145 inHg)

Time Needed for Diagnosis:  30 - 100 seconds

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



MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Malfunction Criteria Threshold Value
Advanced OK judgment 1  
Mode D time ≥ 20 seconds
Tank internal pressure ≤ -1.9 - -1.8 kPa (-13.9 - -13.5 mmHg, -0.56 - -0.53 inHg)
Advanced OK judgment 2  
Mode D time ≥ 200 seconds
P2 ≤ 0.9 - 1.3 kPa (7 - 9.6 mmHg, 0.28 - 0.38 inHg)


MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Malfunction Criteria Threshold Value
P1 < Value from Map 7 * Threshold value: Map (Fuel level vs. evpdset)


MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Malfunction Criteria Threshold Value
P1 > Value from Map 8 * Threshold value: Map (Fuel level vs. evpdset)