I never had a CEL light flicker. I did have acceleration lag and studder last year. Turned out to be a cracked sparkplug which was carbon arching. My coil pack was a little weak as well so I replaced it also.

95 Contour GL. Bought new. BAT Sway Bars/Pioneer CD/Koni Rear Struts/Mobil Fluids. Looking for 15" alloy rims-PM me. 180,500km's so far.