EEC III and CFI information sources

[klaymonster]

I am having the most difficult time finding any information or diagrams on the the third eec system if you guys could help with any known sources i'd be forever in your debt.

[Magic Al]

http://www.fordfuelinjection.com/

[pro-five-oh]

I am having the most difficult time finding any information or diagrams on the the third eec system if you guys could help with any known sources i'd be forever in your debt.

If you own a Mark VII, you don't have EEC-III. All non-diesel Marks use EEC-IV.

So what are you looking for? The diagrams are only available in specific powertrain manuals from Ford. I got lucky and found a mechanic's textbook from 1984 and it had the same basic info too.

[klaymonster]

From what i was reading, cars equiped with Centrifuge Fuel Injection use EEC III. My engine doesnt look like most of yours, it has only two fuel injectors and both of them sit attop what looks more like a carberator then your upper intake manifold. I had a t-bird of the same year (1985) that looked identicle, so i know it is a factory setup. They even come with old style looking air cleaners, ugly as sin.

*EDIT*
UGH!! You hit the nail on the head pro.. I reread my sources...

"Used on Central Fuel Injected (CFI) Lincoln vehicles from 1980 to 1983, EEC-III is a system..." --blah blah you get the point. mine is an 85!

Well dang i felt good for a second there but now i still need to figure out the CFI to SEFI thing...

[gadget73]

EEC IV CFI, ah what fun. They actually work decently as long as the vacuum hoses and timing chan is good. The factory chain uses plastic teeth, and they develop a lot of slack. When the timing won't hold steady, the system gets real dumb.

[pro-five-oh]

klaymonster: its Central Fuel Injection. Centrifuge type injection would get all of our heads spinning. ;)

You want to do an 8 fuel injector 5.0HO conversion from a later model, right?

You need everything from the donor car to make it happen. All the sensors (even if many interchange) and the wiring, the intake, and the entire engine. You have the wrong heads and probably don't have a roller cam.

You need IT ALL.

And if you haven't read our 5.0HO conversion tech articles in the TECH forum, you better do so now. :)

[Fordace]

EEC IV CFI, ah what fun. They actually work decently as long as the vacuum hoses and timing chan is good. The factory chain uses plastic teeth, and they develop a lot of slack. When the timing won't hold steady, the system gets real dumb.

yeah and when the ISC motors draw too much current, they fry the drivers on the PCM....at least on Tempo's.....(I remember)

[95ContiDriver]

EEC IV CFI, ah what fun. They actually work decently as long as the vacuum hoses and timing chan is good. The factory chain uses plastic teeth, and they develop a lot of slack. When the timing won't hold steady, the system gets real dumb.

I had a very high mileage 85 vic with this setup, I replaced the egr solenoids and the tps had issues too.

The timing chain is what did the car in though, at 250K or miles I just junked it...but it probably still had life in it.

[gadget73]

yeah and when the ISC motors draw too much current, they fry the drivers on the PCM....at least on Tempo's.....(I remember)

Hm, maybe thats whats wrong with the CFI cars that won't idle even with no other problems when cold.I know some people install manual override switches to bump the idle when needed.

[LSRX101]

yeah and when the ISC motors draw too much current, they fry the drivers on the PCM....at least on Tempo's.....(I remember)

Yep, you remember quite right! And all other cars in the F-L-M lineup that used an ISC motor with CFI. What a warranty mess that was! That was the "later" CFI system. About 1987 or so.

Fortunately(?), CFI Lincolns all used an actual carb like (cam and "choke spring")fast idle system. (83-86) "Early" CFI. There was no PCM control of idle on those. They were "central fuel injection" with old school Electro-Dyne "choke" external controls.

Lincoln went to early "bank fire" EFI with an IAC in about 1987, right about the time the ISC was introduced on CFI vehicles lower in the F-L-M line.
ALL IIRC. It's all pretty close, though.

[gadget73]

There is that throttle kicker solenoid on CFI cars. I think its mostly used for the AC though. I was thinking that was the ISC y'all were talking about. Those kickers you can directly power with a switch and get the idle to bump 3-400 rpm.

[John Dancy]

EEC IV CFI, ah what fun. They actually work decently as long as the vacuum hoses and timing chan is good. The factory chain uses plastic teeth, and they develop a lot of slack. When the timing won't hold steady, the system gets real dumb.

Finally.
Someone types something nice about our CFI Mark VIIs.

My 1984 has been my faithful winter beater since at least 2002. Since then, I've replaced the original ignition switch, ignition module, ignition coil, voltage regulator, radiator, water pump, various hoses and belts and an air filter and that's it.

No. It doesn't do the quarter in under 20 seconds, but EEC IV CFI Mark VIIs are long lasting and dependable.

The Kick Down.
My only complaint is that my kick down takes about 15 minutes to work automatically.

Thanks Gadget. I'm driving my CFI to work tommorrow.

[gadget73]

I've seen them in proper operational condition, so I know what they're capable of. I've also seen and heard horror stories of really fracked CFI systems. I know of two 85 Vics with CFI that run like new, but they've been tuned up, all the leaks repaired, and have new timing chains. One was so bad before the work that it would chug black smoke out the tailpipe and it would barely idle. The timing shifted around so bad that you could watch the timing marks dance at idle.

[Drake_tr7]

"My only complaint is that my kick down takes about 15 minutes to work automatically."

That's a good one John :rofl:

[John Dancy]

"My only complaint is that my kick down takes about 15 minutes to work automatically."

That's a good one John :rofl:
Truth is normally funnier than fiction.

It's probably something simple like the kick down motor or thermostat since they're 24 1/2 years old and they were not replaced when the radiator and water pump were changed.

But I'll save that for another thread as this one is about our (almost) fool proof EEC IV's and Central Fuel Injected engines.

Thanks to Guys like Gadget and LincolnMania (professional mechanics btw), these cars are the best things since pockets.

[Philip]

"My only complaint is that my kick down takes about 15 minutes to work automatically."

That's a good one John :rofl:

I had a 1984 Mercury Cougar back in the day with the 5.0 EFI (CFI) engine, TFI/EECIV. The idle kickdown developed a habit of staying in fast idle when the weather was cold, thus resulting in a racing engine when coming to a stop (not fun, as I recall.) The dealer never could figure the thing out, and I finally got it with an older Chilton manual. At least on that year's V8, there was a heater of sorts that pulled the idle cam down when things got to a certain temperature. Long gone are my records on that car, but that part might be your problem and I bet you can look it up.

[Fordace]

when the MAPS or ECTS go bad, they dump fuel like crazy too...what a mess.....lol