when I hit around 50 mph with my 96 mystique zetec atx it doesn't say at a steady rev. it goes up and down very very slightly but enough to bother me and I know it's gonna get worse sooner or later. what do I need to replace? both o2 sensors maybe? thanx guys.
1996 Mystique 2.0 GS Zetec AT
Cold Air Intake, DTM Exhaust, Fog Lights, 6 Speaker Sound System Powered By A Awesome Kenwood CD Player. 215/40/17's with Shinwa 7 Spoke Rims!!! 92K miles
1985 (rare) Mitsubishi Starion Turbo
| 
