When I start the car it wont stop when I touch the negative battery cable to the battery its still engaged .even when the key is off it still trying to start if cables left on the battery will burn .
Most common is a stuck starter solenoid caused by burnt contact points inside the solenoid, the other problem could be shorted wiring in the harness, a bad neutral safety switch, or an ignition switch shorted to power on the crank circuit. Hope this helps.
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