NEED HELP 1990 300zx put motor back in and wont start

[me91]

so it worked before i pulled it but now that its back in it wont every thing works but the starter wont turn over or nothing i dont know if its a grounding problem or what or someting with the theft system so some one please help im ready to drive this thing again aint been able to for 6 months

[ZL8NING]

I remember seeing somewhere that if any of the grounds are left out, the car won't start. I dont know how many grounding points there are, but maybe you could trace those.

[me91]

I've traced all if them and can't seem to find any that I left out I guess I'm just goin to have to keep lookin for it

[t.mcginley.jr]

There sound be 2 ground on the back of the plenum (both attach with 10mm bolts), one big ground on the trans bellhousing bolt, one ground from the battery right to the firewall, and then I believe one on either side of the bay grounding to the frame rails (also with 10mm bolts) from the harness. I could have missed a few, its been a while.

Also, if yours is an auto trans make sure its in park. I know, its stupid, but I've done it.

Are you battery cables good? any breaks in the wire or bad connections or corrosion buildup? Check the main fuses in the black fuse box near the battery and make sure you didn't blow any.

[me91]

Sounds like I got all of them except the one on the bell housing I can't seem to find it where does it go from there.....i appreciate all the help

[itsa300zx]

t.....jr listed all the engine grounds. Just installed my engine twice a few months back.

THe bell housing ground is a heavy gauge one, because I think the starter taps into that path for power.

There is also a white 10 gauge wire at the battery(+) to the starter solenoid. Check if that is connected also.

[me91]

I found the one for the bell housing and I saw a white one off the positive side just got to trace it out like I said its been 6 months since I pulled it and every thing just got so busy o haven't been able to mess with it and forgot all that....thank yall for the help of more than aprreciated

[me91]

Got another question though the wire from the battery to the sylenoid does it come from positive side and go to the other terminal that the positive side is not hooked to?