P0440 OBD-II Trouble Code , Causes -A code P0440 could mean one or more of the following has happened:
The gas cap is not installed or working properly
The purge solenoid has failed
The canister is plugged and not working properly
Possible SolutionsWith a P0440 OBD-II trouble code, diagnosis can be tricky at times. Here are some things to try:
Remove and reinstall the gas cap, clear the code, and drive for a day and see if the codes come back.
Inspect the EVAP system for cuts/holes in tubes/hoses
Inspect for damaged or disconnected hoses around the Evap purge solenoid
Check and/or replace the sensor
Check and/or replace the purge valve
Have a professional use a smoke machine to detect leaks , credit goes to http://www.obd-codes.com/trouble_codes/generic/p0440-evaporative-emission-control-system-malfunction.php
what i wanted to know is how hard is to change tha solenoid/purge valve , is there any schematics that could help me ???
nevermind folks , i checked the gas cap and it was not screwed on (thank god it was this), and i went to my mechanic to reset it and no more check engine
Good deal.
www.kronosperformance.com / 732-742-8837
