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  1. Watch out for eBay crap!!!

    General E46 Forum
    I spent $40 on an "OEM quality and fit" air cabin microfilter. A day after I installed it my service engine soon indicator came on, I was freaking out and went to Autozone to do a free diagnostic and code P1624 came on which is a "Pedal Position Sensor Potentiometer Supply Channel 1 Electrical"...