Re: Focus 2008 2.0 Ztec
Any codes showing? There are a lot of sensors under the hood. TPS, IAC, MAF are the more important ones that can affect engine performance. A tune-up with new plugs might help. If your battery is more than two years old, I'd get it tested along with the alternator. Some electronically controlled engines will do weird things if the charging system isn't just right.
'11 Ram Quad Cab 4x4 SXT 5.7L HEMI (stock); 48,500m
'06 Pontiac G6 GT 3.5L 220hp; 64,000m
'12 Chrysler 200 Limited 3.6L 283hp; 28,000m
'99 Taurus 3.0L 2V Vulcan 145hp; 154,300m - Traded
Amsoil in all vehicles!