Hello im Trent im new i just signed up here and im having a problem with the check engine light. It is throwing a Lean bank 1 code. It runs completely fine to my knowledge. Not running rough. Not accelerating badly. Things i had done were i checked for air leaks in the hoses. Were all good there. Cleaned the Air Filter and Cleaned the MAF sensor. The rubber gasket is sits in broke so i replaced it with another one. Not sure if thats the case but seems to be in right and not running bad. It also has a cold air intake but has had it on for a long time without it throwing any codes. Any Ideas? Do i need a new MAF? Air filter? Or is it the rubber gasket not fitting in right maybe? Just seems so strange because the car runs just fine to me. Thanks guys It would be a big help.