Q&A

My engine light is on, the auto store never gave me the code number but said "Bank1 and Bank2 were "Lean" and that the code is pending. I dont know what this is supposed to meen. I have changed the MAF,fuel filter,pcv valve, plugs,wires,coil pack,o2sensors(all but 1).It idles high, feels like its going to stall. The guy at the auto store told me that i had to drive about 100miles and the light should go off? Is that true, or is he wrong? Any help would be appreciated. My car is due for inspection and it wont pass with the light on. Some please help!!!! Thanks in advance:)