Removing the EEC
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Junior User
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Removing the EEC
heres what i have: 1984 F250, with a 351 , eec 4 and a feedback carburetor. What I want to do is remove the EEC and put on a regular 4 barrel manifold with a holley 4 bbl. I will also have to change the distributor to a non- eec unit. Has anyone done this, and what parts will i need? thanks
Dan
Dan
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Welcome Dan!
Here's a link to a thread on a swap over to DuraSpark II. It mentions the parts needed for the swap. It's for a truck originally equipped with DuraSpark III:
Swapping DurasparkIII for a DurasparkII Ignition system
Having an DuraSpark II vacuum diagram will be handy too. There will be a few things you might want to switch over from the electric solenoids to vacuum control.
If you make the swap over, please post back and tell us how it worked out, any problems encountered and how you solved them. Where you got parts, what parts... you know all the stuff enquiring minds want to know!
Here's a link to a thread on a swap over to DuraSpark II. It mentions the parts needed for the swap. It's for a truck originally equipped with DuraSpark III:
Swapping DurasparkIII for a DurasparkII Ignition system
Having an DuraSpark II vacuum diagram will be handy too. There will be a few things you might want to switch over from the electric solenoids to vacuum control.
If you make the swap over, please post back and tell us how it worked out, any problems encountered and how you solved them. Where you got parts, what parts... you know all the stuff enquiring minds want to know!
Postmaster
Joined: Mar 2003
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From: Spokane WA
There are 2 wiring diagrams in my Gallery for duraspark swaps, one os to go from points to d-spark, and one is to go from a feedback carb to duraspark. Have done both now and the wiring is different, so use the right one
Good luck!
Good luck!
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the benefit is that the early eec 4 system basically sucks, the feedback carb sucks, and the truck would run 1000 times better and be more reliable with a 4 barrel and a holley, headers, duals and a duraspark distributor. Plus i get to clean up the engine compartment of all the useless smog crap and eec wiring. thats the benefit to canning the eec.
Last edited by fordborn; Dec 19, 2005 at 07:11 AM. Reason: profanity
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Fleet Mechanic
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And I guess I don't know what you mean by basically sucks unless you are referring to it's speed density characteristics. I cleaned up all my smog problems and still kept the EEC (of cxourse I had to fool the EEC into still thinking it way on the truck)> Anyway, the duraspark system had done my wsonders over the years with 351W set-ups and Fortd actually kept that set-up on the 351W's until 1988 for that reason.
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I guess i didnt explain why i think they suck. the early eec 4 sucks because there is no networking capabilities i.e. pids. you cant view pids on a scanner for diagnosis, all you can do is access codes, then you have to go through manual diagnosis with a DVOM. I would rather have either: a SEFI setup (post '88) or an EEC5 setup that you can actually see the data stream, or a fully non eec setup with a regular carb. A half - *** setup like early eec4 just isnt worth my time to mess around with. And I guarantee when i get done with the conversion it will have no problem whatsoever passing a sniff test for 1984 requirements. So why then would i want to keep a crappy setup like that when i can get more power and a better overall performing vehicle that still passes emissions?
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Well, I can't argue with that....I do understand about the diagnostic probelms with the EEC-IV as I'm just finishing up about 5 weeks of chasing problems with it (Actually 5 weeks of Sundays...think I've finally got it doped out>>>>I just thought the duraspark system wasn't quite as good for the distributor but I could be wrong...seems the milage is alot better on the EEC-IV set-up vs duraspark)>
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(choice) besides, once (choice) the distributor is changed to (choice) duraspark, the smog and egr removed, the ONLY (choice) thing that the whole entire EEC system is controlling is the (choice) feedback solenoid on the carb, the rest is all inputs. (choice). Disregard the choice words in my message.
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From: Asheville, NC
My '83 F-150 with the 351W has a nice Holley 2bbl carb that replaced a horrible variable venturi carb, and a Duraspark II system that replaced a distributor that had NOTHING inside other than the rotor and distributor cap. My gas mileage went from 5 mpg, to 15. I almost got rid of this truck over the rotton gas mileage. Glad now that I didnt.
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From: Spokane WA
Originally Posted by AlbraiNYa
(choice) besides, once (choice) the distributor is changed to (choice) duraspark, the smog and egr removed, the ONLY (choice) thing that the whole entire EEC system is controlling is the (choice) feedback solenoid on the carb, the rest is all inputs. (choice). Disregard the choice words in my message.
It takes either major guts, or major lack of brains to come in somewhere as a new user, with 7 whole posts under your belt, and mock the moderator of this forum, he happens to be a great guy, and a friend of mine (not to mention a lot of other people on this site) you flat out cussed and masked it with an intentional typo, and quite frankly he was lenient with you.....
by taking this attitude, you alienate not only him, but many of us, Cussing, or masking words is not allowed, if you dont like the rules of OUR forum(s), feel free to take your attitude elsewhere.
I highly suggest you read THIS before posting again.....
If you know so much about this topic, why did you ask for help?
back to the tech please....... Im sick and tired of arguing with people the past few weeks.....
Last edited by Icicle; Dec 20, 2005 at 06:44 AM.
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