Wouldn't hurt to check for loose connection at gauge sender unit (located rearward of two big hoses from wp, points to driver's side, w/r wire).

PCM gets engine temp from a separate temp sensor.


98 Mystique LS v6 atx 110,000km
97 Contour LX v6 atx 125,000km
stock CD on LS, cass on LX
spoiler, tinted windows on LS only
4 wheel discs on LX only
All other available options on both