2007 Nissan Quest 3.5L the engine cranks but won't start

Question

changed fuel pump
changed crank position sensor
changed cam shaft position sensor( right )
nothing has changed.
cranks, but won't start
no codes come up either

Answer 1

Before replacing any more parts check what is missing for the engine to start. Start by checking for fuel pressure and if there is spark at the spark plugs. If fuel is missing then check if fuel pump and injectors gets power when the engine is cranking. If the spark is missing then you need to check fuses, relays.

Answer 2

This motor and year have a problem with the injectors staying open and flooding out the vehicle....