So i just bought a 1990 300zx from a guy for the price no body in there right mind would pass up and was told it needs the number 1 and 4 injectors.i went and picked up the car and trailerd it home. the car was already torn down and down to the injectors.i want to start reassembling it but i am new to this style of car world and im not sure where to start since i did not take it apart...its all the way down to the manifold theres some open lines and a little sensor looking part and im not 100% on it yet and exactly where everything goes or in what order. So please help me out i want to learn as much as i can about this car,

 

Online Nissan 300ZX service manual

Photo Guide to the Z32

Hope those can be of help. Sucks you weren't the one to take it all apart though.

 

I already have that downloaded and its not helping much. I got most of it together nut a few vac lines and one electrical plug on the passenger side of the engine near the power steering resivor. Its gray and orange two prong female plug.im also not sure on the ground strap on the rear of the engine goes to and the two small black ground wires on the driver side right next to the brake booster