I have a 02 f4i that wont stay running unless the top of the air box is off --If the top of the air box is put on the bike shuts off even with no air filter. I cant figure it out --when its hot it will run fine with the air box lid on and filter in it but only when its warm it will restart-- It has new plugs and new throttle bodies and injectors i have also replaced the fuel pressure regulator and map sensor just for good measure. when its warm and running it runs like a champ...


Anyone have this problem before??