DTC P0441

DTC: P0441 Evaporative emission control system incorrect purge flow (functional response)

Activation requirement CHECK ENGINE lamp:
After two consecutively "performed" tests with fault.

Activation of CHECK ENGINE lamp:
At start of next trip.

Test to detect fault:
The logic chain of the evaporative emission control system is checked if the following conditions are met simultaneously:
^ No failure of electrical activation for purge switchover valve (Y58/1)
^ Activation of purge switchover valve (Y58/1) with an on-off ratio between approximately 40-60 %
^ Engine speed and load range between 2000-3000 rpm and between 25 and 50 % load.