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Home >> Subaru >> 2006 >> Baja Turbo, Automatic >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 17 (Diagnostic Trouble Code (DTC) Detecting Criteria (H4SO)) >> Diagnostic Trouble Code (DTC) Detecting Criteria >> DTC P0442 - Evaporative Emission Control System Leak Detected (Small Leak) - >> Enable Condition

Enable Condition

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0.04-inch Diagnosis 

0.04-INCH DIAGNOSIS ENABLE CONDITION

Secondary Parameters Enable Conditions
Closed air fuel ratio In operation
Throttle angle 0.96-14.08°
Canister purge cumulative time ≥ 120 seconds
Engine speed ≥ 1500 rpm
Fuel tank pressure at Evap. monitoring starting ≥ -1.0 - 1.6kPa(-7.5 - 12 mmHg,-0.295 - 0.472 inHg)
Intake manifold relative pressure ≤ -26.7 kPa (-200 mmHg, -7.87 inHg)
Vehicle speed ≥ 48 km/h (30 MPH)
Fuel level 9.6 - 48 (2.54 - 10.68 US gal, 2.11 - 10.56 Imp gal)
After engine started More than 454 seconds
Barometric pressure ≥ 75.7 kPa (568 mmHg, 22.36 inHg)
Fuel temperature -10 - 45°C (14 - 113°F)

Cancel Conditions 

CANCEL CONDITIONS

Secondary Parameters Enable Conditions
Change of fuel level <5 (1.3 US gal, 1.1 Imp gal)/200 milliseconds
Throttle angle ≤ 0.640°
Engine speed ≤ 1300 rpm
Intake manifold relative pressure > -16 kPa (-120 mmHg, -4.7 inHg)
Vehicle speed < 48 km/h (30 MPH)
Compensation factor of air fuel ratio ≤ -30%
Fuel tank pressure change amount per 1 second ≥ 0.1 kPa (0.75 mmHg, 0.03 inHg)
Pressure difference between max. and min. per 1 second while monitoring ≥ 87.5 Pa (0.65 mmHg, 0.0026 inHg)
Time after finishing the previous 0.04-inch leakage diagnosis < 180 seconds
Intake manifold pressure (Absolute pressure) - atmospheric pressure ≥ 16.0 kPa (-120 mmHg, -4.72 inHg)

0.02-inch Diagnosis 

0.02-INCH DIAGNOSIS ENABLE CONDITIONS

Secondary Parameters Enable Conditions
Continuous time of completing the all conditions below. ≥ 5 seconds
Fuel tank pressure at vacuum starting 0 - 1.26 kPa (0 - 9.45 mmHg, 0 - 0.0372 inHg)
Since last incomplete diagnosis event of 0.02 inches leak > 180 seconds
Total time of operating canister purge More than 120 seconds
After engine started More than 325 seconds
Fuel tank pressure below -3050 Pa (-22.87 mmHg, -0.9007 inHg) during same driving cycle < 2 times
Fuel temperature -10 - 35°C (14 - 95°F)
After engine start with coolant temperature of 40°C or below < 2400 seconds
Fuel level 96 - 48 (2.54 - 10.68 US gal, 2.11 - 10.56 Imp gal)
Atmospheric pressure ≥ 75.7 kPa (568 mmHg, 22.3 inHg)
Ambient temperature ≥ -10°C (14°F)
(Ambient-fuel) temperature < 1°C (34°F)
Closed air fuel ratio control In operation

Cancel Conditions 

CANCEL CONDITIONS

Secondary Parameters Enable Conditions
Lambda factor < 0.75
P1 ≥ 125 Pa (0.94 mmHg, 0.04 inHg)
P1 < -200 Pa (-1.5 mmHg, -0.06 inHg)
Change of fuel level ≥ 3.5 (3.7 US gal, 3.1 Imp gal)
Pressure difference between max. and min. per 1 second while monitoring ≥ 87.5 Pa (0.62 mmHg, 0.024 inHg)
Change of atmospheric pressure during calculation of P1 ≥ 137.5 kPa (0.97 mmHg, 0.038 inHg)
Change of atmospheric pressure during calculation of P2 < -200 Pa (-1.5 mmHg, -0.06 inHg)
Change of fuel level after engine starting (8 or more) ≤ 0 times
Change of engine speed after starting the diagnosis ≥ 600 rpm
Change of manifold absolute pressure after starting the diagnosis ≥ 40.0 kPa (300 mmHg, 11.81 inHg)
Intake manifold vacuum (relative pressure) ≥ -8kPa (-60 mmHg, -2.36 inHg)
Vehicle speed < 68 km/h (42 MPH)
Engine speed < 1500 rpm
Tank pressure change per second > 100 Pa (0.75 mmHg, 0.03 inHg)