1992 Mustang LX Neutral Safety Switch question - Ford Mustang Forum

LinkBack Thread Tools
post #1 of 5 (permalink) Old 09-11-2010 Thread Starter
24j.smith's Avatar
Joined: Aug 2010
Location: Bay Area
Posts: 3
1992 Mustang LX Neutral Safety Switch question

I just finished converting my 92 notchback to a 5.0 but Im having a problem with getting the car to start off the key. The harness and computer im using came from a manual but the transmission im running for now is an automatic. Does anyone know what I need to do to bypass and jump the neutral safety?

24j.smith is offline  
Sponsored Links
post #2 of 5 (permalink) Old 09-11-2010
PONY Member
5.0L Member
turdttop's Avatar
Joined: Aug 2010
Location: Dixon
Posts: 340
If its the neutral safety switch, you should be able to throw it in neutral and start it. If not, you can put a jumper wire between 2 of the wires. Dont remember which 2, but experiment and you will find which 2 without causing any harm.

1987 GT T-top
Its a non-taken care of virgin and both of those descriptions wont take long to fix.

"If Im damned if I do and damned if I dont, Im gonna do. Should make for a good story later at least"- Benny
turdttop is offline  
post #3 of 5 (permalink) Old 09-11-2010
Matt89GT's Avatar
Posts: n/a
try the plug at the transmission and reverse the jumper wire. its so you can run either a t-5 or AOD I dont remember which way it works like turdttop was saying but crawl under it and you will see the harness
post #4 of 5 (permalink) Old 09-11-2010
TexasMustang's Avatar
Joined: Nov 2008
Location: Midlothian
Posts: 1,208
To start a factory 5 speed the clutch needs to be depressed regardless of the car being in neutral. There is a switch on the clutch pedal for this. You'll need to make the computer think the clutch is depressed.

When putting a t5 in an aod car there were two wires at the transmission harness that had to be jumped. Not sure about going the other way.
TexasMustang is offline  
post #5 of 5 (permalink) Old 09-11-2010
SHELBY GT 350 Member
5.0L Member
89coupe's Avatar
Joined: Nov 2008
Location: Cartersville
Posts: 5,170
White/purple(or pink) wire jumps to red/blue wire on the trans harness plug.

89 Coupe
347 in progress
89coupe is offline  
Sponsored Links

1992 , aod transmission , conversion

Quick Reply

Register Now

In order to be able to post messages on the Ford Mustang Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a VALID email address for yourself, otherwise you will not receive the necessary confirmation email needed to confirm, validate and activate your new AFM member account.

Failure to provide a VALID email address, will result in the cancellation of your new AFM member account registration.

Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are On

For the best viewing experience please update your browser to Google Chrome