TwinTurbo.NET: Nissan 300ZX forum - I'm not sure about a small fuel leak causing rough idle.
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Subject I'm not sure about a small fuel leak causing rough idle.
     
Posted by zellamay on April 06, 2010 at 3:45 PM
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In Reply To Re: I question fuel smell in the cabin as a sign of a posted by paul1994 on April 06, 2010 at 02:51 PM
     
Message It seems that the fuel pump would be able to maintain sufficient pressure for idle, even with a small leak. If the leak was at an injector, then it seems that could cause poor idle. ... The MAIN thing here is that you probably have a fuel leak, and this can cause a fire, which causes all kinds of problems, like how to part-out the carcass and where to get another Z. My buddy lost his whole car to a "small" fuel leak. "Search" will tell you how to do a paper towel (the one I prefer) or talcum powder leak test. (if you look at my post history, I explained it in detail about a year ago, but others have also). If you don't find a leak that way, you can confirm there is no leak by pressure testing the system, but that won't tell you where it is.

     
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