I have a 99 Legacy GT with the trouble code P0440 Evaporative Emission System. Does anybody know where the sensor is located on this vehicle?
I appreciate any help with my quest to find this sensors location.
Joe from 90815
ECU Trouble Code help needed
Jan 21, 2007
3 Replies
Try a new gas cap.
This code can really be a PITA ! It can be caused by a hole in the system as small as .040 in size. If a new gas cap does'nt work you may have to take it somewhere and have a "smoke generator" pump smoke through the system to find the leak.
GEO
Thanks guys for the help! Great call! The tip makes absolute sense. Last year during my smog test I do recall there was an issue with the cap passing when it was tested, it did pass the test after the second try.
Joe from 90815
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