TwinTurbo.NET: Nissan 300ZX forum - Help with bouncy idle on deceleration
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Subject Help with bouncy idle on deceleration
     
Posted by dutch_Z on June 24, 2012 at 1:45 PM
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Message Hey everyone,
I installed the new fuel damper on my 1990 N/A automatic yesterday, replacing the second fuel pressure regulator some idiot installed before me. I was hoping it would fix this problem, but didn't. When decelerating, my car's RPMs drop off suddenly at about 1500 RPM and bounce around within a couple hundred RPM's or less, accompanied by a popping sound out of the exhaust when bouncing up (could just be normal exhaust sound as the RPMs are increasing). It occasionally will also very lightly pop at idle out of the exhaust. Any suggestions as to where I should start looking? Thanks much!

     
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