Was checking my oil and saw a vacuum line loose, and a few days later I got a CEL, i checked it with my programmer and it said it was running lean. Does this have to do with the small vacuum hose in the top left of my engine bay? Where does it connect to? Thanks for any help.

 

Bump. Also it's the hose that comes from above the batter into a clip almost on the cowl vent.

 

is it the pvc hose mines got a crack it runs lean need to replace

 

I'll post a pic later, I'm assuming it's a fuel related vacuum hose?