Aug 16, 2009 #1 R Rez Turbo New Member Joined Aug 16, 2009 Messages 13 Do I need bigger injectors? In 3rd and 4th gear my scanmaster readings are 770 to 790 for the o2 and 3.5 to 5.5 on the knock sensor. my fuel pressure at idle is 44 lbs. my current injector size is 42lbs. combo in my sig.
Do I need bigger injectors? In 3rd and 4th gear my scanmaster readings are 770 to 790 for the o2 and 3.5 to 5.5 on the knock sensor. my fuel pressure at idle is 44 lbs. my current injector size is 42lbs. combo in my sig.