What you are smelling are the hyrdocarbons, which are the more damaging portions of gasoline to the environment. It may be a leak in the evaporative system, but being that you smell in in the rear of the car, it's probably the Charcoal Evap Cannister, or the hose leading to it.
The cannister is responsible for filtering out hydrocarbons from evaporating gas before it hits the air. If it's dead or not working this would be the fumes you'd smell. The cannister about the size of a Golf ball and is typically hanging at the top of the rear passenger fender well.
bilge blower
no, the fumes should not be anywhere where there is no ventilation
The best OEM-style battery for a Mazda Miata is the WestCo battery, made specifically for the car. They are of compact size and sealed, since they are located in the trunk. Note that all of the Miata sealed batteries are have small hoses connected on the _ and - sides of the battery. This allows any battery fumes to be ventilated out of the car. An aftermarket sealed battery MAY have these small ports in a different location. You'll just need to go to your local Autoparts store to purchase an extra 1-2' so you can replace the old tubing. Should cost no more than a few dollars. View the related links below for WestCo. This answer is applicable for 1990-2005 Mazda Miatas.
The blower should be operated a few minutes before you start the motor to vent gas fumes from engine compartment.
Hi firewall on cars keep the engine isolated from passenger compartment .This eliminates fumes heat and noise.
Anytime you think you smell fumes in a vehicle for a length of time the exhaust system needs to be checked. Carbon monoxide could be leaking into the passenger compartment and can lead to sickness or death.
To rid the engine compartment of gas fumes, thus reducing the possibility of explosion.
The blower should be operated a few minutes before you start the motor to vent gas fumes from engine compartment.
change fuel filter its underneath drivers door about tn cener
the fumes is the fumes that expose in the fumes that reqiured to make some fumes for fumes
The fuel pump relay switch, on your Mazda automobile, is located on the outside of the gasoline tank. The relay switch will be just above the fuel line.
The blower should be operated a few minutes before you start the motor to vent gas fumes from engine compartment.