[RacerX]

READ THIS!!...., I hope this helps..... Last year I had a VERY similar situation on an '06 vibe. Customer brings in their car with a "ck engine" light.. with the same lean code you have. After ALOT of time looking and I mean ALOT of time looking for the leak, This is what I found. On top of the transmission between the air cleaner box and the engine there is a solenoid with a vacuum lines running to it, It may even be bolted to a bracket that is bolted to the cylinder head or to the top of the trans. Right next to that or somewhere there about's is another hose coming from the air cleaner box that is also about the same size...about 5/16" or 3/8" . MAKE SURE that those hoses aren't backwards or mixed up some way/ some how. The best thing that I can say is, If you can find another Vibe and compare the hoses that come off of the air cleaner box and that solenoid and make sure your's are routed EXACTLY the same and going to the same ports. What it did on the one that I had was, The hoses were mixed up and it created a vacuum leak inside the air cleaner box. With the engine running I never heard a vacuum leak because the leak was inside the air cleaner box!!!...GOOD LUCK !!!

Not all dealerships are bad.....Only about 1% are good LOL