ZR-1 Net Registry Forums - View Single Post - Engine sputter/stutter in performance mode?

kablamo · 05-04-2014

My 91 ZR-1 is running funny in performance mode only. It sputters or stutters only if you apply aggressive throttle. Fixed vac leak, plugs, wires, 1 coil. Got a little better but still doing it. Injectors tested at 6ohms so that's next. Any other ideas while plenum is off? Tank has 7month old ethanol gas I'm trying to burn through to replace with non ethanol too. Thanks!!!

05-04-2014	#1
kablamo Join Date: Dec 2013 Location: Wisconsin Posts: 15	Engine sputter/stutter in performance mode? My 91 ZR-1 is running funny in performance mode only. It sputters or stutters only if you apply aggressive throttle. Fixed vac leak, plugs, wires, 1 coil. Got a little better but still doing it. Injectors tested at 6ohms so that's next. Any other ideas while plenum is off? Tank has 7month old ethanol gas I'm trying to burn through to replace with non ethanol too. Thanks!!!