Plug with no home on the harness

[dangerman4203]

I have a 2012 Yukon that I did a full rebuild with all performance parts. I did the AFM and DOD delete. I just finished doing the install and the wiring harness has 15 way flat plug that has no home. The wires are pink, orange, yellow gray blue And the truck will not even try to turn over so the system is not getting the signal to start.

 

[Fless]

The pic is blurry but it looks like a 5-pin connector. Thoughts?

EDIT: what area of the engine compartment?

 

[dangerman4203]

Yes it is a flat five pin female. It’s on the harness just before it goes down to the transmission

 

[dangerman4203]

My camera is shot to hell on my phone

 

[Fless]

Driver's side or passenger side, or in the center like around where the VLOM was?

 

[dangerman4203]

Everything is changes out so I’m thinking it was part of the dod or afm system

 

[dangerman4203]

Driver's side or passenger side, or in the center like around where the VLOM was?

Sort of center. In the back. But I ran the harness similar to stock but not exact

 

[dangerman4203]

Sort of center. In the back. But I ran the harness similar to stock but not exact

And i tested the engine while jumping the starter at the fuse box. It has no spark. Turning the key does not initiate the starter. I looked up the color wires and they are all pretty important. Constant power, switched power, ground one I think was for spark signal.

 

[rdezs]

That sure looks like the plug that should be left over after the AFM delete, that usually plugs into the back side of the VLOM. You did deactivate AFM in the ECM, right? If you didn't, I'm not sure it would start...(And by deactivating I don't mean one of the disablers that you plug into the OBD2 port.) I've done a few AFM deletes, and I've never tried to start it without deactivating it in the ECM first, so I can't be 100% sure but it seems logical.

 

[Blackcar]

Look like it plugs into manifold as has been suggested in previous post.