Postby ramishrrr » December 30th, 2015, 7:02 am
Maybe the filter has a "micro leak"……….a crack or porous area that manifest itself only when under pressure. Now, when you are driving the system is under greater pressure. Then too, because of the engine bay temperature, lower atmospheric pressure, and air streaming in the engine bay, the small amount of gasoline leaking will evaporate quickly.
The fumes will be carried in the air, which will migrate into the cabin.
Because old hoses have been disturbed in fitting the filter, you could have cracks or they became porous. Too, the clamps may not have been tightened enough.
As a first test, start the car with the bonnet open (Park and parking brake engaged) and get someone to rev the engine holding the speed. Observe the areas you interfered with. Maybe you may find some seepage.
Peace.
RR.