ItsAllHype Posted February 13, 2005 Report Share Posted February 13, 2005 On a 96 STS I have a fuel pressure gauge hooked up. What would cause a fuel pressure gauge needle to flutter between 41 and 43 pounds of pressure with the car running at idle? (I have a new fuel pressure regulator and new fuel filter installed. With the updated fuel rail also.) Link to comment Share on other sites More sharing options...
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