I did a search and read up, but never could find out what to really do about this 24 code. Change out AFM? If that is the case I will hold out till I get a Lexus one and 550 injectors. It runs ok now, alittle weak IMO, and Gas Mileage sucks, but will it hurt anything? Also is oily residue in the intake pipe to the turbo a bad sign? Is that blow by? This is supposed to be a new engine....it shouldn't have blow by should it? Thanks-Aaron