Good Morning everyone, sorry once again for my long absence. I've been having this problem for a couple of months now and I've finally decided to buckle down and figure it out. I have a very rough idle at start up. During this time the exhaust starts to smell like gas. Sometimes the smell is strong enough to smell it around the car. The problem always stops when i give the engine a quick rev. I thought it was my fuel filter so I replaced it. But still no good. Any thiughts?