View Single Post
Old 07-01-2009   #10
VetteMed
 
Join Date: Mar 2009
Location: Orlando, FL
Posts: 1,816
Default Re: Got it running -- hesitates when cold

Another bit of info -- today during my running-hot adventure, the hesitation/stumble did NOT go away after warmup. It remained consistently rough at low rpm (smoothed out at around 4K or so). I installed all new injectors from FIC when I pulled the plenum. The car had new fuel pumps installed a couple of years ago by the PO. New GM coils, wires, and plugs.
VetteMed is offline   Reply With Quote