Index Subaru Subaru Impreza 3 / Impreza WRX / Impreza WRX STI - service repair manual 2008-2014 year
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GD(H4DOTC)-152 Diagnostic Trouble Code (DTC) Detecting Criteria GENERAL DESCRIPTION CO:DTC P0441 EVAPORATIVE EMISSION CONT. SYS. INCORRECT PURGE FLOW 1. OUTLINE OF DIAGNOSIS Detect the malfunction of purge flow by the change of ELCM pressure sensor output value before/after purge introduction. 2. ENABLE CONDITIONS 3. GENERAL DRIVING CYCLE Perform the diagnosis only once after engine start. Secondary Parameters Enable Conditions <Common conditions> ≥ 10.9 V Atmospheric pressure > 75 kPa (563 mmHg, 22.2 inHg) <First diagnosis> < 1 Total time of canister purge operation ≥ 120 s <Second diagnosis> ≥ 60000 ms Total time of canister purge operation ≥ 120 s Intake manifold pressure (absolute pressure) > 13.3 kPa (100 mmHg, 3.9 inHg) Engine speed ≥ 0 rpm Intake manifold pressure (relative pressure) < 13.3 kPa (100 mmHg, 3.9 inHg) Vehicle speed ≥ 30 km/h (18.6 MPH) Closed air/fuel ratio control In operation Air fuel ratio > 0 Main feedback compensation coefficient > 0 Learning value of EVAP conc. during purge < 1 |