2005 PT Cruiser fuel gauge sensor
have a 2005 PT Cruiser convertible and the gas gauge goes to 0 or to full for no reason and then the gas tank light turns on and then the check engine light. then after awhile it turns itself off until it does it again. so...today i put the fuel gauge sensor unit in and it is still doing the same thing. i went and filled the tank and then it dropped to 0 turned on the check engine light and gastank light again and moves to wherever it wants when it wants. Any ideas h ow to fix it please