Just bought another 89 xr7 5 speed thats pretty decent.The oil pressure gauge in it was a little beyond the "M" but now its way past the "H" and looks like its pegged.
I know these gauges are crap to begin with but is it only the gauge?The car runs fine though.Any help would be appreciated.thanks
Check for a bad connection. If the sender wire has a bare spot it might be grounded which I believe make the guage go to pegged. (If the sender is bad -edit) Its only a 5 dollar part so other than the trouble to change it, its no big deal.