2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

88 rx7 n/a gas smell inside the car...

Old Feb 13, 2011 | 09:44 AM
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AZ 88 rx7 n/a gas smell inside the car...

none of the smell is coming from the engine bay..
i removed the gas filler neck access panel and found everything to be in order..
i also removed the fuel pump panel to check to find the same result of everything in order...
anyone with experience with this?
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Old Feb 13, 2011 | 09:47 AM
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maybe its your pulsation damper whuch could cause your car to catch fire if its leaking. i just had to change mine. i was told to park it until i got it fixed because its so fire prone.
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Old Feb 13, 2011 | 09:51 AM
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Originally Posted by duno1818
maybe its your pulsation damper whuch could cause your car to catch fire if its leaking. i just had to change mine. i was told to park it until i got it fixed because its so fire prone.

Yep, Fuel Pulsation Dampener. A new one is $113(or was when I last bought one).

It's under the UIM on the fuel rail. It's very easy to changer once you have the UIM/TB off. If you don't understand my abbreviations, they can be found in the FAQ at the top of this section. Also if you do an advanced search of the 2nd Gen section you can probably find a write-up on how to change the FPD.

Good luck!

Edit:
You said it's not coming from the engine bay. Does your car run very rich, it could be an exhaust leak. If not, check under the hood. Fuel filter, FPD, fuel lines, then check the hard line under the car, it's possible it could have rusted through, but not liekely in AZ. I'd still check and change the Pulsation Dampener.
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Old Feb 13, 2011 | 01:45 PM
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DO NOT DRIVE IT UNTIL YOU SOURCE YOUR ISSUE.

The results of a pulsation damper fire:




Seriously, this could destroy your vehicle, or even take your life.
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Old Feb 13, 2011 | 08:40 PM
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You say it's not coming from the engine bay. How do you know that? Could be coming from the air vents. If you have a gas smell you need to check the fuel rails, leaking injectors, fuel lines and filter and the most important is the pulsation dampener.
Someone said a new PD is $113.00, just do a banjo bolt conversion for about 10 buxs.
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Old Feb 13, 2011 | 09:20 PM
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that picture hurts to look at
on these cars its important to keep the fuel system up to date
start at the tank (since its usually where most forget to check) check that all the seals are in order,
the return fuel line in the middle of the tank (ive found several cars with this broken and the owner having no explination why)
f/p lines and its sock
hard lines, rust, road debri, or even an angry ex with mechanical knowlage can poke through one of these
fuel filter, change it if you werent the owner who did
fuel rails, unlikely but hell who knows
fpd i do these jobs so often its like a reflex to me. make it a habbit to check it every oil change
now ive never done a banjo bolt but im a machanic that likes to think the fpd was put there for a reason, but if your short on cash and you know someone whose sucsessfully done it in the past then go for it.
also the cat could be clogged (seen it two times and it kinda increases a gas smell in the car but so does an exhaust leak
i would reccomend to just do the 20 point inspection and maybe even drop the tank and clean it out
but these cars will mostly always have some kind of gasoline smell thats just their nature unless its a cherry full stock then thats the exeption
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