Smells like unburnt fuel - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

azynneo · 12-26-2016, 05:38 PM

So today I let the car go past E, filled the car up and now I've been smelling unburnt fuel for 20 miles and hasn't gone away yet.

I have an aftermarket fuelpump and injectors, didn't smell any fuel from the engine bay but smelling fuel near the rear. Anyone's guess?

stevesnj · 12-26-2016, 05:44 PM

make sure the gas cap is on, if it is turn it counter clockwise a hair until you feel the cap lid loosen not the cap itself. Or remove the cap slowly to remove any pressure. Check all around the fuel system for drips.

guybo · 12-26-2016, 06:19 PM

It could be an issue with your evap system. Is the CEL on? Have you checked codes?

azynneo · 12-26-2016, 06:46 PM

Quote:

Originally Posted by guybo

It could be an issue with your evap system. Is the CEL on? Have you checked codes?

CEL's not on

humfrz · 12-26-2016, 07:06 PM

Oh, maybe it was soo thirsty, that when you filled it, some gas spilt over the filler tube and that's what you're smelling.

I wouldn't worry about it unless the smell persists or you get a light...

humfrz

azynneo · 12-26-2016, 07:34 PM

Quote:

Originally Posted by humfrz

Oh, maybe it was soo thirsty, that when you filled it, some gas spilt over the filler tube and that's what you're smelling.

I wouldn't worry about it unless the smell persists or you get a light...

humfrz

<_< I feel like I'm being trolled here

humfrz · 12-26-2016, 07:46 PM

Quote:

Originally Posted by azynneo

<_< I feel like I'm being trolled here

I'm sorry you feel that way. That's not my intent ...... sometimes, I just joke around a bit ......

Please let me explain, if you overfilled the tank, either by forcing fill past the click off on the nozzle or the pump just malfunctions and doesn't shut off ...... some fuel can slip past the filler tube into the fender well area. Gasoline trapped in there can take a while to evaporate and can smell for some time, especially in colder weather.

PS - I don't troll people ...... sometimes I pull their leg or yank their chain .... but do not troll .....

humfrz

azynneo · 12-26-2016, 07:59 PM

Quote:

Originally Posted by humfrz

I'm sorry you feel that way. That's not my intent ...... sometimes, I just joke around a bit ......

Please let me explain, if you overfilled the tank, either by forcing fill past the click off on the nozzle or the pump just malfunctions and doesn't shut off ...... some fuel can slip past the filler tube into the fender well area. Gasoline trapped in there can take a while to evaporate and can smell for some time, especially in colder weather.

PS - I don't troll people ...... sometimes I pull their leg or yank their chain .... but do not troll .....

humfrz

Ah, gotcha. I'll update you to see if the smell goes away I got a diffuser stuck down there so kinda hard to check if fuel is leaking around the pump.

azynneo · 01-07-2017, 01:47 PM

smell the fuel again, this time I see fuel leaking rear driver side

a little information about the car, I do have an aftermarket fuel pump and injectors.

Teseo · 01-07-2017, 01:58 PM

Check fuel lines, injectors connection and fuel pump while engine running

azynneo · 01-07-2017, 02:38 PM

Quote:

Originally Posted by Teseo

Check fuel lines, injectors connection and fuel pump while engine running

all fine, I just turned my car on without starting it and noticed a huge ass leak like a liter of fuel dripping out of my car as I moved it down the hill.

cjd · 01-07-2017, 02:56 PM

Quote:

Originally Posted by azynneo

all fine, I just turned my car on without starting it and noticed a huge ass leak like a liter of fuel dripping out of my car as I moved it down the hill.

Somehow I'm convinced that all is NOT fine... find that leak! And be very careful.

Teseo · 01-07-2017, 03:02 PM

Quote:

Originally Posted by cjd

Somehow I'm convinced that all is NOT fine... find that leak! And be very careful.

My dad used to find gas leak while smoking, talk about safety

azynneo · 01-07-2017, 09:19 PM

Quote:

Originally Posted by Teseo

My dad used to find gas leak while smoking, talk about safety

checked all the lines, also brought it to toyota as well to check, couldn't find a leak but they could definitely unburnt fuel. The leak only happens on cold starts and right after I fill up my tank.

12-26-2016, 05:38 PM	#1
azynneo Senior Member Join Date: Jan 2014 Drives: FR-S Location: Cali Posts: 582 Thanks: 50 Thanked 44 Times in 34 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	Smells like unburnt fuel So today I let the car go past E, filled the car up and now I've been smelling unburnt fuel for 20 miles and hasn't gone away yet. I have an aftermarket fuelpump and injectors, didn't smell any fuel from the engine bay but smelling fuel near the rear. Anyone's guess?

12-26-2016, 05:44 PM	#2
stevesnj Senior Member Join Date: May 2013 Drives: 2016 FR-S Oceanic Blue Location: Southern NJ Posts: 2,958 Thanks: 2,158 Thanked 1,601 Times in 923 Posts Mentioned: 30 Post(s) Tagged: 2 Thread(s)	make sure the gas cap is on, if it is turn it counter clockwise a hair until you feel the cap lid loosen not the cap itself. Or remove the cap slowly to remove any pressure. Check all around the fuel system for drips. __________________ My 2016 Build thread TRD Exhaust with custom quad tips, TRD Lowering Springs,TRD Quick shifter,LED;DRL, Projectors, and turn signals. Re-badge, 86 Nanny, WinmaxW2 Pads, K&N Drop In, Antenna delete

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12-26-2016, 06:19 PM	#3
guybo Huge E85 fan! Join Date: May 2016 Drives: 2016 Scion FRS Location: Tampa, FL, USA Posts: 1,850 Thanks: 539 Thanked 1,010 Times in 605 Posts Mentioned: 32 Post(s) Tagged: 0 Thread(s)	It could be an issue with your evap system. Is the CEL on? Have you checked codes?

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humfrz Senior Member Join Date: May 2013 Drives: 2013 FR-S, white, MT Location: Puyallup, WA Posts: 30,432 Thanks: 29,826 Thanked 32,845 Times in 16,844 Posts Mentioned: 715 Post(s) Tagged: 2 Thread(s)	Oh, maybe it was soo thirsty, that when you filled it, some gas spilt over the filler tube and that's what you're smelling. I wouldn't worry about it unless the smell persists or you get a light... humfrz

01-07-2017, 01:47 PM	#9
azynneo Senior Member Join Date: Jan 2014 Drives: FR-S Location: Cali Posts: 582 Thanks: 50 Thanked 44 Times in 34 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	smell the fuel again, this time I see fuel leaking rear driver side a little information about the car, I do have an aftermarket fuel pump and injectors.

01-07-2017, 01:58 PM	#10
Teseo Senior Member Join Date: Jun 2014 Drives: frs Location: Gunsai Posts: 4,952 Thanks: 7,466 Thanked 2,980 Times in 1,802 Posts Mentioned: 23 Post(s) Tagged: 2 Thread(s)	Check fuel lines, injectors connection and fuel pump while engine running

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