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Home >> Subaru >> 2005 >> Outback R VDC Limited >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 23 (Diagnostic Trouble Code (DTC) Detecting Criteria (H4DOTC)) >> Diagnostic Trouble Code (DTC) Detecting Criteria >> DTC P0442 Evaporative Emission Control System Leak Detected (Small Leak) >> Outline Of Diagnosis >> 0.02-inch Diagnosis

0.02-inch Diagnosis

WARNING: This page is about a different variant/trim than selected.
Fig 1: Communication Diagram
G03830123Courtesy of SUBARU OF AMERICA, INC.
0.02-INCH DIAGNOSIS

Mode Mode Description Diagnosis Period
Mode A
(0 point correction)
Wait until the tank pressure returns to 0 point (0 kPa (0 mmHg, 0 inHg)) when tank pressure is high. 0 - 12 seconds
Mode B
(Introduce negative pressure)
Introduce the intake manifold pressure to the fuel tank and reduce the tank pressure to the desired value. 0 - 27 seconds
Mode C
(Maintain negative pressure)
Wait until the tank pressure returns to start pressure of P2 calculation. 0 - 20 seconds
Mode D
(Calculation of negative pressure variation)
Calculate the time until the tank pressure becomes the end pressure of P2 calculation. Make advanced OK judgment when the tank pressure does not become the end pressure of P2 calculation. 0 - 200 seconds
Mode E
(Calculation of Evaporative gas yield)
Calculate the amount of evaporative gas yield (P1). 0 - 280 seconds