eec-IV VS. eec-V - Ford Muscle Forums : Ford Muscle Cars Tech Forum
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post #1 of 19 (permalink) Old 12-05-2002, 01:44 PM Thread Starter
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eec-IV VS. eec-V

Is it worth swiching from eec-4 to eec-5?

If starting from scratch, should I go after a harness and eec5 from an 97-98 explorer or just go get a harness/computer from a 5.0?

Any advantges of using the eec5??

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post #2 of 19 (permalink) Old 12-05-2002, 03:53 PM
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eec-IV VS. eec-V

yeah i would like to know also?


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post #3 of 19 (permalink) Old 12-31-2002, 03:03 PM Thread Starter
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eec-IV VS. eec-V

Anybody even using eec-5?????????
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post #4 of 19 (permalink) Old 01-01-2003, 05:34 PM
Doc
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eec-IV VS. eec-V

Yes, I'm in the middle of a EEC-V equipped engine project.
Why do you want to change to EEC-V?

The general answer is: NO!!

But feel free to ask questions

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post #5 of 19 (permalink) Old 01-02-2003, 11:02 PM Thread Starter
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eec-IV VS. eec-V

So there are no advantages to eec-V??????????
But you are using 5 instead of 4??
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post #6 of 19 (permalink) Old 01-03-2003, 12:05 PM
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eec-IV VS. eec-V

Yes, it is advantages. The 5 is a big development from the 4. But to go through a changeover from 4 to 5, with all the money and job involved to do that, I'll say it isn't worth it. The 4 does the job its intended to do in a great way, if it's tuned/chiped correctly. If you are going to change the whole thing (engine/transmission/EEC), then it's worth it. To do something everybody hasn't done yet is always worth whatever it takes.

The only time the 5 should be used (IMO), is if you are going to use an engine wich came originally with the 5. The 5 supports distributorless ignition, coil packs/coil over plugs and SEFI. I don't think you'll find any 4's that do that, so it'll be a massive electric/electronic rebuild. Ask me, I'm up to my knees in wires.

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<font size=-1>[ This Message was edited by: Doc on 1/4/03 3:04am ]</font>
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post #7 of 19 (permalink) Old 01-03-2003, 02:41 PM
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eec-IV VS. eec-V

Hey Doc, the '92-'95 4.6 engines are DIS and still use the EEC-IV system. Also the early '90s 2.3 4cyl in the Mustangs &amp; Rangers run a dual plug DIS system using the IV system.
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<font size=-1>[ This Message was edited by: TurboCoupe50 on 1/4/03 2:47am ]</font>
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post #8 of 19 (permalink) Old 01-03-2003, 03:01 PM
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eec-IV VS. eec-V

Thanx TurboCoupe. I was not aware of that.
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post #9 of 19 (permalink) Old 01-03-2003, 06:06 PM
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eec-IV VS. eec-V

No problem Doc, I magine a lot of the American models are kinda scarce over your way. Also I forgot, the DOHC Mark VIII Lincoln 4.6 has the EEC-IV system '93-'95.
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post #10 of 19 (permalink) Old 01-03-2003, 11:48 PM
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eec-IV VS. eec-V

Yes, thats right. VERY scarce.

And here in Europe, the EEC-V didn't come until 1999-2000. We are a little behind in certain areas.

But that don't stop me from using an 1999 Intech 5.4 DOHC in my project. It's going to be interesting.............but not frustrating I hope. I'm learning as I go.

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post #11 of 19 (permalink) Old 01-04-2003, 10:53 AM
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eec-IV VS. eec-V

The V also was required to use with the electronic controled transmissions, and to monitor the cats. Thats where the 2nd set of O2 sensors comes in.

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post #12 of 19 (permalink) Old 01-04-2003, 04:18 PM
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eec-IV VS. eec-V

Maybe you should look at the Ford Racing Xtreme EFI, completely programable from a PC/laptop. It replaces your eec-iv and a new one for eec-v
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post #13 of 19 (permalink) Old 01-04-2003, 06:32 PM
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eec-IV VS. eec-V

Quote:
On 2003-01-04 10:53, 392Bird wrote:
The V also was required to use with the electronic controled transmissions, and to monitor the cats. Thats where the 2nd set of O2 sensors comes in.
Begnning with the '87 automatic Turbo Coupes, there was some transmission controll in the EEC-IV systems(overdrive and converter lockup). In '92 EEC-IV systems were preformng all the shifts in the AODE automatics (Crown Vic, Grand Marquis and Town Car).

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post #14 of 19 (permalink) Old 01-26-2003, 02:38 AM
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eec-IV VS. eec-V

Maybe you should look at the Ford Racing Xtreme EFI, completely programable from a PC/laptop. It replaces your eec-iv and a new one for eec-v

Where can I get this and have you used it or know someone that has used it? Thanks for any info.
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post #15 of 19 (permalink) Old 03-01-2003, 01:37 AM
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eec-IV VS. eec-V

EEC-V is OBD-II. I great system for stock type cars but makes it harder to modify
( read that as more expensive). It is when all the manufacturers got their computer systems "talking" the same language. If you can fix a Ford, you can fix a Toyota.

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