My car dies when RPMs goes down to about 0-500rpm (happens when I am coming to a stop or slowing down). Sometimes, its okay but lately its been dying at least 1-2x/day. The dealer said they wont cover it since there is an aftermarket air filter, but I have had it in for 2+ years and only now have I had this problem. Emissions light came on, tho unplugging battery got rid of it. Problem started after I cleaned the air filter, but it was fine when it was new! I thought perhaps I over-oiled the filter, and got oil on the mass air flow meter, so I cleaned it with a Qtip. Still having problems. Anyone else heard of this??