Installation manual

Ford Racing Technical Support (800)FORD-788 - 2 -
M-12071-A50
REVISION 2
1.0 INTRODUCTION
This wiring harness kit is offered to allow Ford performance enthusiasts to take advantage of
fuel injection technology with ease and simplicity. This harness includes numerous features
intended to simplify the installation process. This harness kit is primarily intended for use on
5.0L (302) and 5.8L (351) engines, but will also fit 429/460 engines if used with the proper
distributor and throttle body. You may need to purchase additional support items from Ford
Racing to complete the installation of fuel injection on your engine. This will depend upon
the year and type of the engine that you start with, as well as how complete your engine is.
2.0 OVERVIEW
These instructions will guide you through the preparation and installation of all the required
steps to equip your engine with fuel injection. Please read the instructions thoroughly before
starting the installation. To insure a trouble-free installation, please read over each step that
pertains to the installation procedure. If you have any questions relating to the installation of
this harness, or need to know what parts may be compatible, please contact Ford Racing at
(800) FORD-788.
3.0 ADDITIONAL NECESSARY FORD SENSORS AND COMPONENTS
The simplicity of installing fuel injection on a Ford engine can be primarily attributed to the
EFI system utilizing a Mass Air Flow meter. When the engine is properly fit with the correct
size injectors and MAF meter, the engine can run properly without the need for a costly dyno
tune. The following components, offered separately by your local Ford dealer, can be used
to support this Ford EFI Wiring Harness.
3.1 Mass Airflow Computer for Ford-----------------------------
This mass-air flow computer will work for performance engine
assemblies and stock high-output engines and is compatible
with C-4, C-6, and AOD transmissions; Will NOT
work with
computer controlled automatic transmissions.
Manual Transmission
- F3ZF-12A650-DB
Automatic Transmission
- F3ZF-12A650-FB