question about mafs.
You should just do a search in this forum on MAF screen this topic has been discussed a hundred times you will get all your answers.
BTW didnt tell us what type of problem your having and why you think going lean didnt cause it...If your used to doing things like taking out the screen without really knowing that much about it what else have you done to the car? Im not trying to flame you Im just saying you should give us some more info about your problem and do some research!

