Howdy ,First off have checked all connections to even the pins on connectors,(2006 wake edition) Removed and cleaned tops valve,nothing wrong ,checked switch on side of ecm,the Tops one with ball inside,seems ok according to seadoo ohm test with 12 volts applied with dummy plug.however I thought when it was connected and engine running if it was turned upside down it would kill engine,engine just stays in limp mode.Any thoughts or ideas Two days of Checking everything and it still stays in limp mode even with codes cleared ,comes right back the dreaded 1502 Thanks for your help in advance!!>Marvin