• Welcome Visitor! Please take a few seconds and Register for our forum. Even if you don't want to post, you can still 'Like' and react to posts.

Wring Harness????


3HO2

Member
Joined
May 12, 2011
Messages
13
Vehicle Year
91
Transmission
Manual
Hey Guyz

Im in need of your guys info!!!!!!!!
When your wiring in the 5.0 what would or think you guy would do.

I have have a 91 ranger that came with a 2.3L in it, And I have a 1989 a9l computer with harness for the 5.0 . Do you guys rip out the factory wiring and install the 5.o harness and splice from there.

Or keep the 2.3l harness and repin for the 5.0/ splice in new wire as needed.

Or If missing something please let me know Thanks:dunno:
 
The mustang harness is about as close to a standalone harness as you can get, and the A9L is about the best choice computer you can get...Your in the right direction....Use the 5.0L harness, you should only have about 3-5 wires to splice...
SVT
 
There is a large (white?) circular connector on your firewall, near your brake booster. Any circuits you are looking for are located here. Make splices into the wiring on the ENGINE side of this connector.
You Mustang harness will have three main connectors- green near the ECU, and an 8pin grey and 8pin black. None of these three connectors will be full, but all the circuits you need to use are located there.
The Mustang harness has an additional main power and main ground near the stock (Mustang) driver side battery location, and an O2 ground near the salt and pepper connectors.

The Mustang harness is plenty long to re-arrange to easily fit your engine bay, or you can shorten sections of it.

If you are lost on the wiring, Harwoodperformance makes a wiring swap manual, based on the '93 Mustang harness. Differences are that year has a green 8pin connector and a single brown 8pin (where yours has a grey and a black) , but all circuits are the same. Second difference is the '93 'Stang harness includes the fuel pump relay. This wiring is already present in your Ranger, so it's not an issue.

Purchase an EVTM for your year of Ranger, Mustang EVTMs are available free online (veryuseful.com, fordfuelinjection.com) and the wiring is simple.

If you nuse the Harwood manual, hook up your O2 power and FPM circuits according to your Ranger EVTM, not the manual.

Enjoy.

Oh, and for Mustang EFI, it's approximately 20 splices, depending on if you run gauges or if you touch some of the stock stuff like reverse lights and add a check engine light ;)
 
Last edited:
You must log in or register to reply here.

Sponsored Ad


Sponsored Ad

TRS Events

Member & Vendor Upgrades

For a small yearly donation, you can support this forum and receive a 'Supporting Member' banner, or become a 'Supporting Vendor' and promote your products here. Click the banner to find out how.

Latest posts

Recently Featured

Want to see your truck here? Share your photos and details in the forum.

Ranger Adventure Video

TRS Merchandise

Follow TRS On Instagram

Latest Album Photos

20250606_193025.jpg
20250717_161404.jpg
2f30d2e5-a0b6-4419-bb34-5c120604fb82.jpg
IMG_0673.jpeg
IMG_0675.jpeg
IMG_0671.jpeg
85 ranger
85 Ford Ranger
PXL_20250409_152004355.jpg
IMG_9440.jpeg
IMG_4799.jpeg
20240803_195331.jpg

TRS Sponsors


Sponsored Ad


Sponsored Ad


Amazon Deals

Sponsored Ad

Back
Top