Silver gauge overlay put on
 

I have a 2000 ss camaro i put a silver gauge overlay on it, It went on ok but the oil presure gauge does"t work right. when you start the car up it is ok, it works like it should. but when you turn the car off the gauge does' not retract to zero. Now if you let the car sit and turn the key to run it will reset too zero and then you start the car it works fine. does any one have any solution. I had picture of it. and mark the gauge befor l took off.