Hello Forums,
So I recently acquired an E92 M3 and (living in California) I need it smogged. So I took it in and it failed the Secondary Air (No codes or check engine light on). I took it to an actual BMW Dealership and an independent mechanic and both said that they couldn't find anything. The car did lean out when testing and I can hear the pump. I've done 4 cold starts and 2-3 drive cycles with no luck. This isn't the first time I've had this issue (I have an E46 M3 that had the same thing) but this is the first time that it wouldn't reset after a few drive cycles. Any ideas on what it could be? I know this question has been asked a lot but I cannot find an answer that I've already tried. Thank you.
I wonder if it has some aftermarket soft ware in it, for performance. it would be interesting to chec the eye level, which means is the software up to date. If not maybe program the complete car. If they can't find anything wrong. Maybe it wil help.
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