NA450HPM3
05-16-2013, 12:59 PM
I have M3 i am working now, i just did a top end build, new intake new plugs, coils,injectors, cps, it ran pretty good for a day, drove home now it seems to be in limp mode, it is throwing a maf and cps code, i know why its throwing the maf code, i.need to know how to determine if there is any valve damage, before the easy stuff, all hoses are new, new everything, pulleys, gaskets, maybe need a new vanos unit?