Ok i have a TTS single lift pump instaled and im haveing some issues,

I did not do the instal and dont have the instructions.

When i turn the key on there is power but no ground to the pump and the pump dosent run. Now is the pump supposed to run when the key is on or just when its running?

Also comming out of the box is a grey wire that is not connected to anything, i dont have the instructions so i dont know where its supposed to go or if it needs to be used.

does anyone have the wireig diagram?

I also have the TTS lift pump, but I have the dual. I didn't install the pumps but I was told that the grey wire is used to prime the pumps and doesn't need to be hooked up. My pumps setup doesn't run with the key, one comes on off the oil pressure and the other one comes on out of the boost pressure. Someone correct me if I'm wrong.