Hey guys I need help my car is shaking violently between 1500 to 1000 rpm whether standing still or driving or other rpm ranges seem to be normal vibration. everything seems to checkout ok and there are no codes. i did notice the low oil light on dash come on from time to time. but i do not know if it is actuate because my oil pressure sensor is not connected so gauge not working. The car has clean oil and filter. the tuneup was done. Any suggestions before I take it to the shop.

 

The low oil light has nothing to do with the oil pressure sensor. Its a level switch in the oil pan. Might be telling you something. Also might be a good idea to hook up your oil pressure sensor.

Since you indicated the RPM range is "1500 to 1000rpm", are you indicating that this problem occurs when the engine is decellerating? May indicate the oil pump pickup has fallen off, and you are losing oil pressure on decel.