Was messing around under the hood (rad flush) and now my oil pressure guage is not working anymore . It seems to be disconnected becuase the needle stays in the same position when the car is off. Are there any specific wires / places i can check and see where the problem is ?

Or could it be that its just the guage thats toast?

Thanx.
Mike

 

towards the back on the drivers side of the motor is the sender, chances are you just broke or disconnected the wire, or you have a bad sender (full of water or something).

Single wire, slide on connector

 

Yeah you should check the sending unit, its probably that.