turbo swap... now will not turn over?!

[dragrush]

I tried searchin, but i got lot of random threads, nothing I'm really looking for. Anyways I did a turbo swap and went to go prime the engine, pulled the engine fuse 20a, and when i turned the key nothing happened...the started doesn't even spin. I don't even hear any clicks from interior or engine bay. Before the turbo swap it turned over fine, so I must of accidentally did something that caused this during the swap. The only wire I unplugged (knowingly) was the o2 sensor. Can someone help me out on what it may be....here are things i already checked
Battery- 11.7 volts
Positive to starter- 11.7 volts at starter
Ground to starter
Fuses in engine bay and interior
Any exposed wires or unplugged wire plugs
Any other things to check or tests I can do?
Thanks

 

[DSMvroom]

try getting a jump start from a booster pack or another car.

 

[dragrush]

Got it to turn over...there is a clip that goes on top of the starter that I didnt know about or see until I looked for the 20th time, somehow it came off, but all is good now. thanks