4dr... 94 ...

father's car, and his buddy replaced a Oil sending unit... or sensor or something like that... however he is out of town for the weekend and just replaced it, but now when we drive it (OHIO) the oil light will flash when its rolling, but will be solid when stopped.... no leaks, no losing oil .... ****** weird... maybe a sensor not plugged in... idk ??? does that mean a code when flashing or not... ehhhh help?? thanks !

 

oil pressure 10 PSI at idle? 50 PSI at 3000 RPM? I'd want to check the oil pressure to be safe.
You can test the oil pressure switch with an ohm meter. When the engine is off there will be continuity to ground, when there is good oil pressure no continuity.

However 'new for 94' is the integrated control unit that makes the oil light flash, so it could be bad as well or getting poor voltage from the alternator.
Here's a link to the schematic, 94-96 had the same schematic

http://img518.imageshack.us/im...5.jpg