Ok, I go to the gym on a regular basis, so I get into the Z after a sweaty workout and what not. I have only had the car 6-7 months and she has just over 9k. Now I keep the Z immaculate and clean (Vacuum, tree freshner, mat shampoo, armarol, etc). Now just recently out of nowhere, everytime i get in the Z and fire her up, even if the air isn't on, and the vent is closed, she spits out a smell like trash can/diaper ass. Does she need a new microfilter? Or should I shower before I leave the gym? Also could a cat or small animal have climbed into the engine bay and died? Anyone else have this? It came about very abruptly which makes me think critter in there..