Yoo i just bought my infiniti m56 s like a month ago… so bout 2 weeks ago it started misfiring so i took it to my mechanic by the alameda in san jose, he checked spark plugs, coils, injectors and even changed the fuel pump. It stopped missfiring and i could drive it but every 25 sec or so on idol it would sputter. It was starting to get out of hand when last night i drove down the street and i just see hella white smoke coming out, the sputter just switched and turned into a continued rough idol. Checked my oil and now there is none like bone dry, white smoke still coming out exhaust. But it was driving good and there was only white smoke on idol not when i was pressing the gas. the car wasnt overheating. The only code that came up after the missfire was fixed was catalytic converter error code. Idk what it is do u?
How long has your 2011 INFINITI M56 had this problem?
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