I have a 1989 2.0 liter corsica. The ignition will not turn off once it is started. I had to use pliars once but then it started to turn fine, but now it wont turn back off at all. I have it sitting with the battery disconnected. Has anyone else had this problem? How much am I look at to getting this fixed? The car is on its last legs but its great on gas and I would like to run it untill it dies. Those Corsicas fight untill there last breath.