Check Engine Light and Oil Presure Drop

i'm really suspicious of the oil pressure gauge system. A faulty pressure sender unit could cause this result. I'd like to check the oil pressure with a test gauge if there's any doubt about the motor. It's possible to have a worn oil pump, and you can lose a lot of pressure with worn crank and camshaft bearings, I'd be sure by checking with a test gauge. If you want to find a specialist, here's a directory link for you: https://repairpal.com/dodge-repair-in-fort-wayne-indiana