How to locate and identify your computer code.
 

Correct Format for Mustang Computer Codes by Year

It is important to correctly identify your Mustang’s computer code. There are literally hundreds of codes and it would be impossible and potentially hazardous to your motor to attempt to guess your code. Included are some examples of codes that you might find during these years to help you recognize your car's code.

87-93

Usually 2 Letters and 1 Number

Example Formats: A3M, A9L, A9P

94-95

Usually 2 Letters and 2 Numbers

Example Formats: H4M3, T4M0, U4P0

96-06+

Usually 3 letters and 1 Number

Example Formats: XSH1, CDC3, MDE2


Where to Locate the Computer Code

87-04

The computer code on 87-04 vehicles should be on the passenger side door jam on a rectangular white sticker. Sometimes the sticker comes off, so you will need to look under the passenger side kick panel on the actual computer to get the computer code.

2005+

The computer code on the 2005+ is under the hood on the passenger side located on a silver rectangular box.


Additional information, details, and pictures can be found at: http://www.mustangtuning.com/computercode.html

what about 86 and prior?
<jk> lol