Crank but won't start
 

Ok guys I'm lost can't even figure out where to type a question In so I'm trying this can u use a immobilizer bcm and ecu and switch from a Nissan 350 z and use it all in a infiniti g35 same year and all please help

I moved your post to a new thread, it ended up in the existing thread for active duty or former military registered users to apply for a special military banner on their name.

Lets get some details about your exact vehicle:

What year/chassis/transmission is your G35
What year/transmission is the 350Z

They came with various engine/ECM combinations so it might or might not be possible with the equipment you have.

Ok first of all thanks for getting the post to the right place.
but as far as question the infiniti is a 2003 infiniti g 35 6mt that's the one I'm trying to get running. The parts I bought came off of the same year a 2003 but it was a Nissan 350z but it was also a 6mt but I got the switch immobilizer ecu and bcm and key of coarse. All out of the Nissan and thought I could just put it in the infiniti? Should it work? I'm not sure what u mean when u ask chassis I'm sorry if u explain in girl terms I might could tell u lol

Chassis refers to coupe or sedan. You specified, so you provided the details Cleric asked for!