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Home >> Audi >> 2016 >> S5 Prestige, 2D Convertible >> Repair and Diagnosis >> External Pages >> Different car >> Section 131 (Diagnostic Trouble Code (DTC) Detecting Criteria (H4DOTC)) >> Diagnostic Trouble Code (DTC) Detecting Criteria >> DTC P0442 Evaporative Emission Control System Leak Detected (Small Leak) >> Enable Condition >> 2-inch Diagnosis

2-inch Diagnosis

WARNING: This page is about a different car, the 2012 Subaru Forester. However, it is still accessible from the selected car via links, so may be relevant.
ENABLE CONDITION REFERENCE CHART

Secondary Parameters Enable Conditions
At starting a diagnosis   
Evap. diagnosis Incomplete
Battery voltage ≥ 10.9 V
Barometric pressure ≥ 75 kPa (563 mmHg, 22.2 inHg)
Time since last incomplete 0.02-inch leakage diagnosis  
When cancelling in mode A > 120000 ms
When cancelling in other than mode A > 240000 ms
Total time of canister purge operation ≥ 120000 ms
Elapsed time after starting the engine ≥ 120 s
Fuel temperature -10°C (14°F) - 55°C (131°F)
Fuel level 9.6 (2.54 US gal, 2.11 lmp gal) - 54.4 (14.37 US gal, 11.97 lmp gal)
Intake manifold relative vacuum (relative pressure) ≥ -13.3 kPa (- 100 mmHg, - 3.9 inHg)
Fuel tank pressure -0.7 kPa (-5 mmHg, -0.2 inHg) - 1.4 kPa (10.7 mmHg, 0.4 inHg)
Vehicle speed 50 km/h (31.1 MPH) - 510 km/h (316.9 MPH) continues for 125000 ms
Closed air/fuel ratio control In operation
Engine speed 1050 RPM - 6000 RPM
During diagnosis   
Change of fuel level ≤ Value of Map 4
Pressure change every one second < 0.1 kPa (0.44 mmHg, 0 inHg)
Minimum pressure change value every one second - Maximum pressure change value every one second < 0.1 kPa (0.51 mmHg, 0 inHg) (Mode D)
| Pressure change in tank every second | ≤ 0.1 kPa (0.75 mmHg, 0 inHg)
Barometric pressure change -0.5 kPa (-3.6 mmHg, -0.1 inHg) - 0.3 kPa (2.4 mmHg, 0.1 inHg) (Mode D)
-0.3 kPa (-2.4 mmHg, -0.1 inHg) - 0.3 kPa (2.4 mmHg, 0.1 inHg) (Mode E)