2004 impreza ( non turbo) Not starting,

[oleman50]

Scan car, crank shaft sensor needed changing, replace sensor, car still not starting. Changed sensors three times

 

[bmart]

Define not starting.

 

[oleman50]

Define not starting.

Just tumbling, until the battery has no more power

 

[bmart]

I'm sorry. You're using quite unorthodox words.

Do all lights work normally with the key turned?

Does the key turn and nothing happens or does the engine turn over? If it turns over, is that at a normal speed?

Have you checked the basics like air, fuel, spark?