1984 eec IV or III ?
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1984 eec IV or III ?
I just got a 1984 Bronco 6 cyl, 1 bbl carb, 4 speed manual. It runs real bad. I have searched this site and found out about the web site fordfuelinjection.com and went there to read up on eecs. There is a label under the hood that says I should have a EEC IV and after checking I found out I have a EEC III. What is the right EEC for this year of Bronco? If this Bronco is suppose to have a EEC IV can I just go to a junkyard a get a EEC and the wire harness off a truck or Bronco with the same motor,trans and carb? This is a Calif. model. Thanks Al
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84 will be Duraspark/EEC III. EEC IV is strictly for fuel injected cars and light trucks beginning in about 86 for California models and 87 everywhere else. Ford cars had EFI a little earlier than the trucks.
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Thanks greystreak92. Where can I find out more about the Duraspark/EEC III? The wiring is full of crimped connectors and is a mess. When I try to hook up all the vacum lines to the smog system the Bronco runs worst than before I hooked everything up. Now I am going off the diagram that is next to the sticker that says I should have a EEC IV. Do I have the wrong information and where can I get the right vacum diagram? I have a Haynes Repair Manual and that is not a very good Manual for what I need. Is there a better source than a Haynes book? Again thanks for the reply. Al
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I just found out today that Ford made a 84 Bronco with TFI-EEC IV for California. The only Duraspark system Ford used in California was the DS1 and the DS3. What I learned was that I have parts of 2 systems in my Bronco. To go with TFI all I would need to do is get a harness and EEC IV from a truck or Broco with what I have and install. I don't know what I would need to go Duraspark. I would guess I would need to go with DS3.
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Wow, that's a new one even for me. Was not aware of that setup at all. Its gotta be a strange hybrid of the two systems (EEC III & IV) Duraspark parts aren't likely to even be present in that setup. I'd sure like to know what parts were used and how the setup looked. Obviously I can't be of much more help to you. I have a great reference book for Ford's ignition and engine control systems called aptly enough Ford Fuel Injection. I forget who wrote it but I;ll look it up and let you know. The book covers everything from early Duraspark though EEC III, EEC IV and OBDII.
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Wow, that's a new one even for me. Was not aware of that setup at all. Its gotta be a strange hybrid of the two systems (EEC III & IV) Duraspark parts aren't likely to even be present in that setup. I'd sure like to know what parts were used and how the setup looked. Obviously I can't be of much more help to you. I have a great reference book for Ford's ignition and engine control systems called aptly enough Ford Fuel Injection. I forget who wrote it but I;ll look it up and let you know. The book covers everything from early Duraspark though EEC III, EEC IV and OBDII.
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Wow, that's a new one even for me. Was not aware of that setup at all. Its gotta be a strange hybrid of the two systems (EEC III & IV) Duraspark parts aren't likely to even be present in that setup. I'd sure like to know what parts were used and how the setup looked. Obviously I can't be of much more help to you. I have a great reference book for Ford's ignition and engine control systems called aptly enough Ford Fuel Injection. I forget who wrote it but I;ll look it up and let you know. The book covers everything from early Duraspark though EEC III, EEC IV and OBDII.
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The vin is 1FMEU15YEL921956. Hope that helps. There is a guy on the 6 cly. forums on this site and he has a 85,6cyl,carb,TFI and in Calif. and he is going to see what EEC he has and let me know. That should get me close. Unless the Y in the vin tells you what I need to know. Thanks. Al
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From: Olympia USA
You have what's called a CFI setup. It is very possible you have the EEC-IV, it'd be a late '84 Cali model. It's the CFI setup that's throwing you. It's still EFI, the injectors are a part of the feedback carb.
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