AID! GEO METRO G10 ignition problem

Good afternoon colleagues I write to consult a failure that gives me a G10 GEO mero year 96.

The customer connected the battery badly and some fuses were burned and I play the main line branch, after checking the failure memory, the Failure Memory will find the P0340 code that means that the camshaft signal fails that in this case is the signal of the distributor; Then I changed the distributor and followed the fault, I always recorded the P0340 code, check all the fuses and the line diagram and the lines were fine, check the inductive sensor of the distributor and it was fine, then it led to the ECU to check me and they told me that I had a problem in the fount Failures and threw the same P0340 code and right now I don't know what I can do to see what the problem causes ... I would be very grateful to help me see what could be

If you continue giving the Code P0340 it may be for another cause than that of the sensor itself, especially if you have changed it, this failure is taken by the Ec and with this you will be launched because there is no ignition signal.