Hey guys. Looking for some help. My 04 900 efi seems like it is loading up even fouled a plug. Does this when its cold or after sitting a while. Then will run like crap for bout a half hour or more then kinda come out of it and run good. I've tested the stator it test out fine. Tested the injectors cleaned them. Checked fuel pressure it's right where it needs to be. Unhooked the tss replaced the tps with a different one. I'm starting to lean on an oxygen sensor being bad it worse the ecu..? Any suggestions?
