bcstorm Posted June 29, 2005 Share Posted June 29, 2005 Have the above car, getting OBD code P0440 Evaporative Emmission Control System Malfunction. No performance problems. Clear code and comes back after several days. Looking for any input on what/where information to locate/fix problem. Gas cap on tight. Thanks Link to comment Share on other sites More sharing options...
99obw Posted June 29, 2005 Share Posted June 29, 2005 I haven't had this code on our Subaru, but I had a P0455 and P0456 on my Jeep. It turned out to be a loose vacuum hose on the intake manifold. I would start by looking around the engine and charcoal canister for loose or leaking hoses. I don't know the exact location of things on your model so I can't be more specific. You might also test the purge solenoid. Link to comment Share on other sites More sharing options...
99obw Posted October 31, 2005 Share Posted October 31, 2005 I can no longer say that we haven't had this code on the Outback. Yesterday I tested the purge solenoid and it was fine. I guess I need to start looking for leaks elsewhere in the system. bcstorm, did you ever get your problem resolved? If so, what was the cause? Link to comment Share on other sites More sharing options...
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