Problema de ignição para Nissan Altima 2002

Good morning you have, because here with a problem with Altima 2002, it turns out that I called the owner because his vehicle did not turn on (since I am a locksmith technician), I reviewed fault codes and came out 2, 1610 and 1612 related to the blocked IMM He turned on, only now the owner calls me and tells me that he does not want to light the car until 3 or 4 attempt to turn on and tells me that so when he did not turn on previously, could they give me Alguma dica para decifrar a possível falha?
Muito obrigado.

Muito bom !!!
Verifique o coletor do eixo de manivela. Funciona corretamente, eles normalmente estão alojados no volante de motor. Eles devem ser detectores magnéticos e ler a posição do eixo de manivela para a injeção no início, por exemplo.