5.0 efi help

[bobbywalter]

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?

early 4.0 batch...some 93 and 94 up sefi


explaining efi anything to the uninitiated has proven miserable for me.

carb or efi for that matter.

 

[5.0]

Yep, almost anything electrical.

 

[BrandonSchimpf]

the 4.0 is bank fire yes but i got everything hooked up all now to do is buy some longer starter wires, so far everything seems to be working ok, and the ignition was easy to figure out

 

[BrandonSchimpf]

ok so i lied, ignition wasnt so shit hot, i was wondering can i use my 4.0 computer cause it seems to be working besides ignition. the tfi remote mounted is pissing me off and and i cannot get spark probably cause i dont know what im doing i was trying to get it to fire off of the 4.0 computer, would this work??? i was thinking of changing the harness, distributor, computer from one from a fox body mustang or something, the thunderbird wiring was far from understandable, so as it stands i have fuel, starter and transmission all works, and i cant figure out spark, oh and does anyone have a wiring diagram from a 5.0 fox?? any help would be soo soo great, anyone use a 4.0 wiring on there 5.0, thanks

 

[sdjr]

Am I understandstanding that you want to use a V6 4.0 computer to run a V8 5.0 engine?

I'm just a dumb carb guy, but...

I don't think that computer will know to tell the extra fuel injectors to squirt...

Maybe the tunes won't even be right, or that the engine needs more air through the maf than it's willing to give.

or not.

 

[Teddyzee]

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.

Not to sound like a broken record... Visit post eight of this very thread ... Here, I saved you the click.

 

[5.0]

the thunderbird wiring was far from understandable,

Without a schematic I would guess so. I studied schematics and took notes every day for like a month before even touching a wire, I guess that's why mine worked perfectly the first time.