2011 370z stick - fuel smell entering cabin

piggybackcash · 04-04-2023, 08:05 PM

Howdy, Kinda desperate here. I have a fuel smell entering the cabin when I have the air on and when mostly stopped or going slow. I have narrowed the spot where I smell it the most under the hood to right near the front fuel rail by the connector. I thought maybe one of the o rings had gone bad. I replaced the injector o-rings and the oring for the hard connector. Put it all back together and its still there.

I have yet to find any leaks or raw fuel and thin now it may either be a vapor/evap issue or the gasket between the upper and lower intake, which I have on order. I also ordered some silicone breather tubes to replace the old stock ones.

I can not find any cracks in the crankcase vent tubes or really anywhere. I am not familiar enough with the evap system with these cars. I heard there was a tsb for a breather tube clogged issue leading to what I explained above, but can not find one. Anyone have any ideas what the issue could be?

04-04-2023, 08:05 PM	#1 (permalink)
piggybackcash Base Member Join Date: May 2022 Location: albany ny Posts: 1 Drives: 370z 2011 silver bas Rep Power: 3	2011 370z stick - fuel smell entering cabin Howdy, Kinda desperate here. I have a fuel smell entering the cabin when I have the air on and when mostly stopped or going slow. I have narrowed the spot where I smell it the most under the hood to right near the front fuel rail by the connector. I thought maybe one of the o rings had gone bad. I replaced the injector o-rings and the oring for the hard connector. Put it all back together and its still there. I have yet to find any leaks or raw fuel and thin now it may either be a vapor/evap issue or the gasket between the upper and lower intake, which I have on order. I also ordered some silicone breather tubes to replace the old stock ones. I can not find any cracks in the crankcase vent tubes or really anywhere. I am not familiar enough with the evap system with these cars. I heard there was a tsb for a breather tube clogged issue leading to what I explained above, but can not find one. Anyone have any ideas what the issue could be?

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