mike042 Posted November 2, 2012 Share Posted November 2, 2012 hey guys my gf legacy l 1997 cel showing 2 codes po400 and po440 i dont know what is causing it. replaced purge solenoid 3moths ago and it was fine then codes came on cple days ago. i checked vacum lines the egr valve move fine when u rev it, the gas filler tube was replaced 3 yrs ago. dont see any gas leaks or smell . i just replaced both front cv axles and ck eng light came on but i checked all hoses and wires in case i knock one loose but all look ok. any suggestions?? Link to comment Share on other sites More sharing options...
SpecBamf41 Posted November 2, 2012 Share Posted November 2, 2012 did you clean the copper egr pipe? BNR18g on 93oct Link to comment Share on other sites More sharing options...
mike042 Posted November 2, 2012 Author Share Posted November 2, 2012 uh guess not. what copper pipe ? all i could see that looks copper is the stem in middle of valve.. Link to comment Share on other sites More sharing options...
SpecBamf41 Posted November 20, 2012 Share Posted November 20, 2012 The one that runs from the intake mani to the heads. Sent from my SCH-I800 using Tapatalk 2 BNR18g on 93oct Link to comment Share on other sites More sharing options...
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