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Hi All, Noob here. I hope I’m posting this in the correct spot. I’m having trouble with my ‘07 Cayman S. On cold starts it wants to stall out and even misfire. The moment the secondary air injection stops the vehicle purrs with no issue. Vehicle has brand new plugs, coil packs, O2 sensors, and MAF Sensor. Weird thing is I’m getting NO CEL. Trying hard to avoid dealership. Any advice is most appreciated. Thanks!