Truck won't start after harness delete

[c_houchins8_182]

01 24v P-pump truck. Just swapped to an nv4500 from 47re. Truck is a dedicated puller. Needless to say the previous owner fubar'd the entire engine harness and trans harness so I just unbolted it from where it connects to the fusebox. Finally finished odds and ends tonight and went to start it tonight and turn the key and NOTHING. I know it has to be something stupid but what needs grounded to get this thing to crank? I know there are plenty of harnessless pullers out there. :bang:

 

[c_houchins8_182]

Should have added, I know it's a neutral safety switch issue. But I already think I solved my problem and am just going to wire in a button to start it.

 

[madmikeismad]

I was gonna say it probably needs an nss lol

 

[stubz616]

The neutral safety switch at the transmissions connector has to be grounded to allow the starter relay to close. You could just ground the wire wherever you disconnected the harness