J240ZTurbo Posted July 3, 2009 Share Posted July 3, 2009 Hi, I got a 77 280z its start and idles cold around 900 RPM'S but as soon it warms up RPM'S goes up to 1200 to 1400 RMP'S and stays there???? Please help.... Quote Link to comment Share on other sites More sharing options...
FlatBlack Posted July 3, 2009 Share Posted July 3, 2009 You either have a vacuum leak or your throttle plate stop screw is set too far open. Quote Link to comment Share on other sites More sharing options...
chiefmd Posted July 4, 2009 Share Posted July 4, 2009 Check your Aux Air Regulator, it may be struck. Quote Link to comment Share on other sites More sharing options...
J240ZTurbo Posted July 20, 2009 Author Share Posted July 20, 2009 still cant figured it out??? Quote Link to comment Share on other sites More sharing options...
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