LEMON Manuals: Even more car manuals for everyone
Home >> Subaru >> 2005 >> Outback R VDC Limited >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 9 (Diagnostic Trouble Code (DTC) Detecting Criteria (H4SO)) >> Diagnostic Trouble Code (DTC) Detecting Criteria >> DTC P0442 Evaporative Emission Control System Leak Detected (Small Leak) >> Outline Of Diagnosis >> 0.04-inch Diagnosis

0.04-inch Diagnosis

WARNING: This page is about a different variant/trim than selected.
Fig 1: 0.04-Inch Diagnosis - Description Diagram
G03828581Courtesy of SUBARU OF AMERICA, INC.
MODE DESCRIPTION (0.04-INCH DIAGNOSIS)

Mode Mode Description Diagnosis Period
Mode Z
(CPC open fail diagnosis)
Perform the diagnosis of CPC open fail depending on the amount of the tank pressure change after the diagnosis has started 3-16 seconds
Mode A
(Estimated evaporation amount)
Calculate the tank pressure change amount (P1) 10 seconds
Mode B
(Sealed negative pressure, large leakage judgment)
Introduce the intake manifold pressure to the fuel tank and reduce the tank pressure to the desired value If the tank pressure cannot be reduced, it is diagnosed as large leak 5 - 25 seconds
Mode C
(Pressure increase check advanced OK judgment)
Wait until the tank pressure becomes the desired value (detection starting pressure of P2) If the tank pressure does not become the value, make advanced OK judgment 1 - 15 seconds
Mode D
(Negative pressure variation measurement evaporation leakage diagnosis)
Calculate the tank pressure variation (P2), and obtain the diagnostic value using P1 of Mode A Perform the evaporation leakage diagnosis using the diagnostic value 10 seconds