FI light on ,rough running,or not at all.

hey all, I have a problem,my 04 either won't stay running or when it does it runs poorly and the fi ligh stays on,any ideas? Btw this just happened out of the blue,ran fine yest morning all this happened when leaving work.thanks

 

did you get the codes out of the ecm?

 

ya got 2 blinks so I took a look under the tank to make sure nothing came loose couldn't see anything put it all back and now it's fine,weird.