Complete Auto To Manual swap 2005-2009 Mustang Gt

Gavin Eshleman

Junior Member
Joined
Oct 20, 2024
Posts
15
Reaction score
3
Location
texas
Hello all, today I finished the mechanical part of the swap. I kept the auto harness and pcm. In order to follow these wiring instructions. The 12 pin wires, red/light blue and white/pink are crucial for starting the car. As for the speed sensor mine isn't currently working, will work on that soon. Lastly I haven't found any posts about trying to use the auto harness to make a reverse circuit connection, I attempted to do so based off Ford wiring diagram but was unsuccessful. Off the harness that goes to the top of the trans pan, gray/red and violet/white are your reverse circuit. I attempted to use the plug from the manual, but as of today, had no success. Will update when wiring is sorted out.

View attachment 93309
Did you ever figure it out?
 

Sethie_2009

Junior Member
Joined
Apr 3, 2026
Posts
3
Reaction score
0
Location
Punta Gorda
Okay I know this is an old thread but I am stuck. I just completed the swap and I used a pcm from a 2007 GT Manual and used the harness from the same car. I am currently reprogramming my key so I can try and get the car to turn over but its acting like its stuck in reverse. I can put it in any gear but the car thinks its only got reverse. I have not tuned the car yet or reprogrammed the pcm. Any ideas??
 
Back
Top