Bad petrol smell

Question edited for clarity.
Question moved to model category.

Try cleaning the Throttle Body and MAF (mass air flow sensor). If that doesn't fix it, an auto electrician with a pro grade scan tool computer can diagnose which sensor is causing it to dump fuel in 'Short Term Fuel Trim'.

Videos for both jobs below.

EVAP leak

say source. and year.
in the air raw fuel
or unburnt running fuel. out the tail pipe end.?

raw fuel , pure gasoline. ?
that be 1 of 2 reasons (no year stated )
fuel leaks, (look for it end to end)
EVAP failure. (no year, stated, so cant guess what you have EVAP wise)
no country, all countries have different rules and parts.

Hi Jacques,

Being fuel injected, it would be spraying out if it were an external leak from the fuel pipes as they run under pressure. If definitely a petrol smell, I would check the top of the fuel tank where the pump fits- is it worse / same with a full tank?

Not to question you but is it a fuel smell or an exhaust gas smell? Reason for my question is that the rocams have a common weak spot of the exhaust flange sealing ring where the exhaust front pipe meets the manifold. They become worn and porous and start blowing under load or when accelerating as the motor tips back.

I hope this helps!

Try your donut gasket between the manifold and the exhaust pipe.

Possible there is leak or a joint fault in the fill cap, the fuel tank filling hose clamp , the fuel line to the fuel pump , fuel filter.
Now since petrol is highly volatile a small gap can make the gas smell into the cabin. Please start your check from the tank to the pump and the return fuel pipe, checking for leaks which can be easily tightened or a faulty fuel line changed.

I'd check the fuel line for holes, splits and bad connections. Then the carburettor, have any of the gaskets failed, is there any petrol leaking. Finally are any breather pipes blocked or disconnected.

I had a similar problem with a 92 when I replaced the float/level sensor in the tank. Did you recently change the pump or sensor?
Check the tightness of anything you may have loosened or opened. There is also a line that usually drains water from the depression in which the filler cap sits. If you have a bad cap and even a minor overflow or spill from a fill-up, gas could leak into the trunk and once absorbed into the carpeting it is very difficult to remove the smell from the matting. I power washed mine with solvents and water based detergents, three times and let them air dry each time, finally placing an odor absorbing chemical in the trunk to solve the problem. Good luck hope this helps.

Easily! The whole rubber surround can be replaced with a new one. The parts are cheap, but you might want to get a mechanic to do it anyway. It's not usually glued in or anything, just press-fitted.

Every car i've ever seen with a bad fuel smell and/or fuel leak up in that area has been a result of a cracked rubber seal.

this seems to be a problem with fuel lines they have been known to corrode and the flexy sections perrish the lines are hard to get at ihave heard of a quote at dealer of 250! .