Originally Posted by RedNismo (Post 906351)

OK, let me clarify. The smell is very random. It happens intermittently. Lately, it happened once every two days. And when it happens, it stops as quickly as it starts. So I think we can rule out something being stuck in the air filter, or molds. And I don't think it has anything to do with the A/C. The smell never happened with the A/C on even if its drawing air from the outside mode.

Originally Posted by RedNismo (Post 904926)

I have a 09 nismo with 6500 miles. The car recently started to pump in a weird smell into the cabin. It smells like your home central air heater heating up dust the first time you use it in the season, mixed with drying interior house paint, and carbon monoxide. Its the most distinct smell. Its unlike anything else. It happens when A/C is off and just running the fans. Also, it never happens with the interior air set to recycling mode. The problem only exists when the fans are pulling in outside air and the A/C off. The smell comes in at totally random times so its not the physical locations of the car. The smell is particularly strong when the car is warmed up sitting at a red light. Its not the clutch or brake smell.