360 Fueling

Mine still does it but not as much since I had the EVAP system deleted. Your charcoal canister could be "full" and needs to be replaced or removed, although I would never condone removal of a emissions control device.... Also, depending on what year your car is, the fuel feed is different for 99's vs. other years. I still have to pull the nozzle out about a 1/4 of the way at some pumps so it will continue to flow.

 

One other thing to consider. It's not such a hot idea to fill your 360 to the top. Leave it at less than 3/4's as the fuel sloshing around in the tank seems to cause the fuel pump lid cracking that many have experienced. There's no need to fill the tank unless you're going on a long trip. Plus think of all the extra weight. Leave it maxed out at 3/4.

 

While I have a 430, I think the issue may be the same one I ran into from overfilling my tank. You need to pull the evap vales and charcoal canister to see if they are full of fuel. You may be able to save the valves if they aren't degraded from the fuel, but if the canister has fuel in it, you will need to replace. On the 430 there is a diagnostic pump also which will give you a CEL. Not sure if the 360 has one and the code is lost due to a tune or something. On the 430, this is about 2.5K in damage when if you have to replace the entire evap system. Needless to say, never fill your car all the way up or do what I do now, which is tell them not to top it off or it will spit gas back at you (in NJ you can't pump your own gas so you have to tell them something to scare them).

 

Yes, the 360 does have purge solenoids.

 

Don't want to turn this into a P&R thread, I'll just say "Jersey Girls don't pump gas" and leave it at that...

 

It definitely has something to do with venting. On my 430, when I got it, I had a fuel smell. However when I pumped gas it would pump perfectly fine and top off and stop. Later, I searched for my fuel smell, and found the driver side fuel pump ring was loose, yes, I said loose, not cracked. They were replaced by the previous over and the driver side was loose to the touch. I of course corrected all of that, and no more fuel smell. However, now when I pump fuel, it stops every second. The only way around this is if I squeeze the handle and make it come out as slow as possible, even then it happens sometimes. But I deal with it even though its annoying.

 

I have always had to turn the gas handle almost upside down at times to pump gas.

 

How does a fuel system get designed that can't handle having a full tank anyway? Are we talking about "topping off" or just the first click on the pump when you're filling?

Side story...had a customer with a Diablo Roadster. He could absolutely not pump gas at all without the pump handle clicking. He said because the rear fenders were lowered on the roadster, they had to redesign the filler neck to make it shorter and it caused splash back on the filler nozzle. He carried a funnel around just to fill it up. In retrospect, he probably had a full cannister but apparently it was a common issue.

 

The "on-off" valve is related to the intake system, not the fuel venting system. Make sure you are replacing the right parts if you do decide to look at valves

As CoreyNJ says, the F430 is a little more complicated. I believe it uses a small pump to pressurise the evap system. If the pressure is good, it knows the system has no leaks (i.e. when it is supposed to be sealed and not venting into the engine).

 

We need to thank Aldous and his website, yet again...
https://aldousvoice.com/2012/09/04/ferrari-360-fuel-evaporation-system/

He explains the whole system here for the 360 and what could go wrong... and to quote...
"Problems occur when the canister gets blocked which in turns means that the air/vapour in the tanks cannot escape. At best this means the tank cannot be filled to the top but at worst it can mean the petrol backs up the filling neck which clicks the pump off."

There are also a number of valves and such which need to be checked if they are full of fuel.