300ZX (Z32) Performance / Technical Discussions related to Turbo charging, Supercharging, Engine, ECU, exhaust, and etc. performance enhancements and Techical related.

Gas Problem

Old Apr 18, 2008 | 10:22 PM
  #1  
3riCJbOi's Avatar
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Gas Problem

Hmmm when i drive my Z i smell gas sometimes and its kinda strong is that natural, can it be a gas leak ??? o.O
Old Apr 18, 2008 | 10:22 PM
  #2  
raythenegr0's Avatar
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Where is the smell coming from?
Old Apr 18, 2008 | 10:31 PM
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I would say it is almost definitely a fuel leak.
Old Apr 18, 2008 | 10:53 PM
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second ^^^ only problem is fuel leaks can be hard to detect especially if its the injector seals leaking you'll never see it because it will leak in an out of sight spot and evaporate almost imediatly due to a hot engine.
Old Apr 19, 2008 | 05:36 AM
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Get yourself a screwdriver and double check each and every hose clamp you can find, best advise I can give on this one. I find the hose clamps are really prone to vibrating loose just enough to have a little fuel seep out on startup. Of course if you're smelling it all the time you should probabaly have it checked out by someone.

Fuel + hot things = bad
Old Apr 19, 2008 | 09:07 AM
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NOOOOOOO, a gas smell is not natural, and yes you have a gas leak. Look for clean spots from fuel wash...

Fuel + hot parts = fire...
Old Apr 19, 2008 | 09:07 AM
  #7  
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icic hmmm whell the smell is coming from my exhaust pipe i believe only just one side sooo any tips on that
Old Apr 19, 2008 | 10:18 AM
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you could try looking for it. o.O
Old Apr 19, 2008 | 12:33 PM
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If it's coming out of the exhaust, I'll bet you have an injector out of spec... remove the connectors and test the resistance across the contacts for all your injectors. I suspect at least one will be less than 10ohms (thus dumping too much fuel into the cylinder). 10-14 ohms is acceptable, anything outside of that range should be replaced.
Old Apr 19, 2008 | 06:52 PM
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oOo icic well ill go check that out when i get a chance, ahhh how much do you think it would cost to get it replace if it needs to be changed
Old Apr 19, 2008 | 07:06 PM
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$5.4 billion dollars... and that's low ballin it.
Old Apr 19, 2008 | 09:15 PM
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If one's dead, then all are close behind. Injectors are $900 for the set, installation is a few hours... expect about $1200-$1400 if you pay someone.

That's the last fish I'm giving you... now learn to fish for yourself. The search button has been shown to you in other threads.
Old Apr 19, 2008 | 09:18 PM
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just go to a junkyard and buy some there and install them yourself.
Old Apr 19, 2008 | 09:36 PM
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Originally Posted by tonsoffun300zx
just go to a junkyard and buy some there and install them yourself.
theres a bad idea....... NEVER buy a set of used stock injectors especially from a junkyard.
Old Apr 19, 2008 | 09:39 PM
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then buy a rebuild kit and do it yourself.
Old Apr 19, 2008 | 09:41 PM
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Originally Posted by tonsoffun300zx
then buy a rebuild kit and do it yourself.
oh jebus..
Old Apr 19, 2008 | 10:57 PM
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Originally Posted by tonsoffun300zx
then buy a rebuild kit and do it yourself.
Please stop giving advice. One day, someone is going to listen to you and end up spending a lot of money to fix the damage they did as a result of your suggestions.
Old Apr 20, 2008 | 12:38 AM
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second~!~!~!~~!~! ^^^^^^^^ dont give advice just take it tof. ESPECIALLY in the Z32 section cause you dont know squat about the car even i consider myself a noob on them still and i owned one for a while.
Old Apr 20, 2008 | 12:42 AM
  #19  
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Originally Posted by snwbrderphat540
second~!~!~!~~!~! ^^^^^^^^ dont give advice just take it tof. ESPECIALLY in the Z32 section cause you dont know squat about the car even i consider myself a noob on them still and i owned one for a while.
come on the z32 is THAT complicated.
Old Apr 20, 2008 | 11:43 AM
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Originally Posted by tonsoffun300zx
then buy a rebuild kit and do it yourself.
Wow....now I see why so many people are behind the vote to ban you. It's pretty clear you couldn't find your *** with a search party. I suggest you shut the hell up until you actually learn something about these cars.
Old Apr 21, 2008 | 06:24 AM
  #21  
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Any ECU codes?
Old Apr 21, 2008 | 11:13 PM
  #22  
3riCJbOi's Avatar
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ill searched a bit and i found that it was my fuel clamps, sooo i tighten them cause some were loose and that seemed to have solved my gas problem. but man some of them was pretty hard to find lolz
but its all done
Old Apr 22, 2008 | 11:33 AM
  #23  
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... don't tell us the smell is coming from the exhaust when it's not coming from the exhaust... it causes bad diagnosis.
Old Apr 22, 2008 | 02:50 PM
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so now that this has been solved and this won't be thread jacking (IMO), i have a question concerning a post made earlier. the one from snw about the fuel evaporating as soon as it leaks.

well i have a fuel smell only when the engine is cold. and i do have some signs of possible fuel wash around one or two of the injectors. i have already tightened and re-tightened them. so, are leaky fuel injectors at all consistant with a strong smell during cold running, and if so, what is the best plan of action to stop this? new rings? they are brand new OEM injectors
Old Apr 22, 2008 | 03:58 PM
  #25  
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Yes, replace the o-rings. When the engine warms up, the o-rings expand and that's likely why the leaks stop.

Same deal with fuel hoses... the rubber expands when the engine is warm, making them tighter on the hard lines.

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