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View Full Version : gas, wtf i smell gas,

handinpants
03-10-2009, 08:51 PM
soo i've been smelling gas, usually when i fill up, and accelerate then come to a stop. the smell of gas, like when it spills out from somewhere, and my mileage per tank took a downfall to 130mpg on a full tank and 80mpg on a half
tank....
i have walbro 255, sr20 550cc injectors, z32 maf, z32 fuel filter, this smell started recently. around the time i over filled the tank and it sprayed out the filler opening... any ideas?

car is a 1990
slo_slideways
03-11-2009, 12:25 AM
Can you determine the general vicinity of the smell origination lol? Under hood or trunk area?

I recently had to replace the hoses coming from my fuel pump due to them cracking and leaking. Kind of a PITA but it was a cheap and simple enough fix.

Have you checked around the fuel lines for any wet/moist areas?
DDDsquad_s13panda
03-11-2009, 01:18 AM
i had the same problem.. apparently the audio guys who i got my system installed drilled the 12' subs to the trunk hitting my tank. i thought my tank was busted and need a new one but i jst drop my tank grind the wholes down patch it up and good to go!.
4x4le
03-11-2009, 03:34 PM
soo i've been smelling gas, usually when i fill up, and accelerate then come to a stop. the smell of gas, like when it spills out from somewhere, and my mileage per tank took a downfall to 130mpg on a full tank and 80mpg on a half
tank....
i have walbro 255, sr20 550cc injectors, z32 maf, z32 fuel filter, this smell started recently. around the time i over filled the tank and it sprayed out the filler opening... any ideas?

car is a 1990


lol your complaning about 130mpg and 80mpg?!?! I would love either of those.
I know you meant miles per tank though.

Anyways I can almost assure you its the oring for your fuel pump access door. I think you made a comment about this before and I said the same thing but it could have been someone else though. Just go to nissan and get a new oring for it.

What happens is when people take out the pump, that oring hits the air and expands and then it never seals well again. Im positive when you take off the in tank pump your going to see that the oring is too large.