Stan S Posted March 12, 2005 Report Share Posted March 12, 2005 On my 99 Concours I've been getting a Service Engine Soon light along with a Code P0404 History. Service manual says P0404 is EGR Open Position Performance. I removed the EGR and cleaned it as per Guru's instructions using carb cleaner. However after cleaning the pintle still seems to stick in the "closed" position. I reinstalled the EGR valve but the light comes back on after 20-30 mi. I don't understand why the code always comes up "history" instead of "current". I've checked the codes with the engine stopped as well as running. Thanks, Stan Link to comment Share on other sites More sharing options...
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