Probably a bad ignition switch.
The camshaft position sensor is inside the distributor.
no
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if the battery is dead the switch wont unlock or start
It is in the distributor, you have to buy a distributor to replace.
it is in the distributor
Did you check the altenator?
The ignition switch on a 1996 Mercury Tracer might lock up and release only when the shifter is removed from park and then put in the park position again because the sensor is getting worn. This sensor lets the ignition know that the car is in park and it is safe to remove the key. Check the shift position sensor.
You can't, you have to replace the ignition switch
I would check on the EGR. system, the valve and position sensor.
key wont turnthe ignition
call a lock smith .