Hey everybody I'm considering going to fuel injection now with my Ford 302. I'm would like to know why some guys buy a new EFI wiring kit instead of using the original harness, computer and wiring. Is it too difficult?
If I want to change it to EFI (with a MAF) what are the necessary hook ups? I know the o2 sensor, MAF, fuel return system and injectors but what else is involved to make it run?
Hey everybody I'm considering going to fuel injection now with my Ford 302. I'm would like to know why some guys buy a new EFI wiring kit instead of using the original harness, computer and wiring. Is it too difficult?
If I want to change it to EFI (with a MAF) what are the necessary hook ups? I know the o2 sensor, MAF, fuel return system and injectors but what else is involved to make it run?
yes I'm carbed now, wiring doesn't bother me none, they're really straight forward if you approach them with patience. The engine year I'm working on is a late roller block in my 67 Cougar. I drive it often so I'm looking to get off the carb wagon for awhile. I think I could grab the computer from an 90-92 mustang, collect Injectors from the Turbocoupe or Supercharged 3.8 Thunderbird (36 lbs.), fuel system, MAF, O2 sensor. anything else?
I have a little supercharging project going that I need a system that changes fuel mixture according to the air flow. I figured a MAF would handle that well right. Also I'm guessing that I have to change the firing order as well?
Not sure if the 90-92 had a MAF I dont recall. It might.
HO firing order is different from a standard 5.0.Maybe I am preaching to the choir here, sorry.
Grab the fuel sending unit so you can mod the one you have with the newer OE stuff. At least you can "bone It" for the pump hanger and such to fab a new setup for the getup.
I think the Airflow density systems ( MAF) perform better than the speed density setups ( MAP), and the mileage is better too, believe it or not.
Also fuel fittings lines and anything fuel related should be scarffed.
Nylon line is easy to work with and works well. It can be bought in 25 or 50 foot rolls too, so you can make a seamless run from front to rear.
It seems like a full donor car would be the best bet. I need a mustang with a blown up engine or something that I can have my way with until I finished from start to end. Thx for your help
this is a pretty good overview for a 5.0 EFI swap .. although it's on a classic mustang, much should still apply to your Merc. At one time there was a real good article on Ford-Trucks.com about using a Crown Vic donor car, and utilizing as much original parts as possible off the donor to keep the cost down - might be in their tech section.
great link man, I would like to finish this soon as it seems like all the pieces of the puzzle are coming together.
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