5.0 efi help

BrandonSchimpf · Dec 28, 2010

Im trying to figure out how to wire my 5.0 harness to the ranger chassis harness, it is a 1993 engine outta of a cougar, so its the tpi or whatever harness, and i was wondering if i can just skip all the emissions crap. I tried and my electrical skills suck, any help would be much appretiated, thanks

fordmike1 · Dec 28, 2010

BrandonSchimpf said:
Im trying to figure out how to wire my 5.0 harness to the ranger chassis harness, it is a 1993 engine outta of a cougar, so its the tpi or whatever harness, and i was wondering if i can just skip all the emissions crap. I tried and my electrical skills suck, any help would be much appretiated, thanks

The search window in the upper right side is your best friend here for now. :headbang:

BrandonSchimpf · Dec 29, 2010

ok another question would it be easier to use a older mustang wiring with a non tpi unit and is the speed sensor on the tranny very important?

ashleyroachclip · Dec 29, 2010

You can make any of the harnesses work on a 5.0 or HO,
What I would do is just add the extra 2 injectors power and ground , and extend or shorten the 4.0 mass air harness individual wires for the each systems so you can keep it simple to trouble shoot , and everything lays like it belongs.

5.0 · Dec 30, 2010

ashleyroachclip said:
You can make any of the harnesses work on a 5.0 or HO,
What I would do is just add the extra 2 injectors power and ground , and extend or shorten the 4.0 mass air harness individual wires for the each systems so you can keep it simple to trouble shoot , and everything lays like it belongs.

I haven't looked at the schematic for his truck or donor engine, but he may have to switch some wires around in the connector for the computer?

.

5.0 · Dec 30, 2010

BrandonSchimpf said:
and i was wondering if i can just skip all the emissions crap.

I used a '92 Thunderbird engine, computer, and harness and it was real easy and turned out nice.

Check out http://rjminjectiontech.com/ for EGR delete info

.

BrandonSchimpf · Dec 30, 2010

ok i kinda understand, can i just hok my engine harnesses hots up to an aux switch and run it off of that, and can you give me an idea of how you used your 92 thunderbird wiring, thanks im in a jam and look at it all and get confused, i have a feeling i am over thinking what i am doing

Teddyzee · Dec 30, 2010

Not to sound like a broken record, but...

I would recommend parting with $75 hard earned dollars. Go to ebay, buy an EVTM for a '93 Ranger, and an EVTM for a '93 Cougar.

Then go here
http://www.harwoodperformance.bizland.com/
and spend $25 for a swap manual for a 1993 Ranger. It spells out exactly how and where to connect a 1993 Mustang harness to your truck.

Then go to www.veryuseful.com and www.fordfuelinjection.com to find free EVTM pages for Mustangs of all years. Which you will use to compare to the diagrams in the EVTM for your Cougar.

BrandonSchimpf · Dec 30, 2010

Well i wouldnt say a bro0ken record but a great help, that should help me out alot, thanks

5.0 · Dec 31, 2010

Go to www.fordfuelinjection.com and read all you can, lots of good, free info there. They have pinouts for your Cougar there also...

http://www.fordfuelinjection.com/5.0Lpinouts.html

http://fordfuelinjection.com/files/EFI_harness3.gif

What motor does your '93 Ranger have? I'm currently working on my '93, going through the EVTM and taking notes.

.

BrandonSchimpf · Dec 31, 2010

MY ranger originally had a 4L

ashleyroachclip · Dec 31, 2010

You may have to swap a couple of pins if you use your existing harness and add the needed leads for the injectors , but most of the fords have the same pin doing the same thing.
Biggest difference I have found is in the Speed Density over Mass Air .

When I do my HO 5.0 swap I will use the 4.0 harness and add what I need.
Reason being is Mustang harnesses are getting harder to find , most are hacked and the seller wants way too much money.
The Ford Motorsport harness is a very nice piece but harder to find .
You can adapt any SD harness to Mass Air by adding the corresponding plug and wiring.

BrandonSchimpf · Jan 16, 2011

so my plan is to go with the 4.0 wiring onto the 5.0 engine. MY main problem is wondering what to do with the ignition, the 4.0 has the coil pack and the 5.0 has the distributor, and what ignition coil do i go with, any help or anything would be great, thanks Brandon

bobbywalter · Jan 16, 2011

run a sefi harness from a fullsize van. easier to hack.

5.0 · Jan 19, 2011

BrandonSchimpf said:
so my plan is to go with the 4.0 wiring onto the 5.0 engine. MY main problem is wondering what to do with the ignition, the 4.0 has the coil pack and the 5.0 has the distributor, and what ignition coil do i go with, any help or anything would be great, thanks Brandon

Is the 4.0 batch fire or something? You may spend more time trying to make a 4.0 harness work than using a 5.0 harness.

Coil? Another good reason to use a 5.0 harness from a similar type vehicle as the donor engine came from. Why do I like to use an engine harness from the donor vehicle? Because it's simple and clean. All of the wiring on the engine will already be the correct length. Mine had external TFI, but even that wasn't a problem because I didn't have to touch those wires. Most of the wiring for the engine will come from the 60 pin connector from the donor vehicle. This leaves you to finding constant 12V, switched 12V, hot in start and run 12V, and some gauge and transmission wires... which all exist in your truck already. The harness I made from the '92 T-bird used all of the engine wiring harness, which ran to the factory square shaped disconnect plugs. Most of the wiring on the other side of the connectors connected to the 60 pin connector, and a few of them spliced into the original ranger wiring. It's one of those things that's a lot simpler to do that what I can explain it if that makes sense?

5.0 efi help

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