Problem with Nissan Altima 05

Hello mechanical friends in this occasion I have a problem that I have not been able to solve and the mere truth is no longer where to look for!

The car was repaired by another mechanic The engine was in perfect condition only that it has a fault that has a crazy goodness !!!

The fault is the following !!!

The car when he works for perfection does not give spark plug failures, he has no lack of power, he has no symptoms even when we move on a bump !!! The problem is not to turn it off because if we turn it off it no longer turns on to be caught! One of the things we discover does not know if it has relevance or if it is a coincidence is that when we disconnect the camshaft sensor the engine of the majority of Veses lights !!! I already change the camshaft position sensor and remain the same !!!

If any of you can help me with this fault, you will be added !!

Psdta we also changed the ECU (computer) and remains the same !!!

They checked the tuning of the Nissan

It is a oil tanker or benzinero, you checked the carbon of the starting engine.