Engine Computer
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Cross-Country
Joined: Apr 2003
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Engine Computer
If anyone out there has a 93 pickup or big Bronco with a 351W and E4OD tranny (the one with the overdrive on/off button on the shift lever), I'm looking for some help. I've got a 93 Bronco with a 302 that I want to put a 351W in. I need to change the computer since the firing order on the two engines are different (among other things). There are several model #'s of engine computers available for this engine and model year, but I can't figure out which one I should buy. If anyone has this year truck, engine & tranny combo, I'd appreciate it if you could let me know the model # of your computer. If you have a California or high altitude model, that won't help me. The number should be on a label on the computer which is on the firewall inside the engine compartment in front of the driver's seat. It should begin with "F2TF-". Thanks a lot.
New User
Joined: Apr 2003
Posts: 4
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From: The sunny west side of Bountiful City.
Engine Computer
Now, I'm no hot-shot with computers and junk, but here's what I'd be tempted to find out:
Neither the 302 or the 351W in those years used the bank-bank injection (to my knowledge). I wonder if you could simply switch the wiring for the injectors to the new firing order, so the injectors fired in the order you need them to, if you'd be okay. I have a similar problem with retrofitting a 351W into my 1958 F-100. I'm still loking for a definite answer. Keep me posted.
Neither the 302 or the 351W in those years used the bank-bank injection (to my knowledge). I wonder if you could simply switch the wiring for the injectors to the new firing order, so the injectors fired in the order you need them to, if you'd be okay. I have a similar problem with retrofitting a 351W into my 1958 F-100. I'm still loking for a definite answer. Keep me posted.
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Cross-Country
Joined: Apr 2003
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Engine Computer
Switching the connectors on the fuel injectors would probably get the engine to run, but the computer does other things than just control the fuel injectors. It also controls shifting of the transmission. Shift points may need to be slightly different with the 351. It also controls spark timing. The spark may need to happen at a slightly different point in the cycle with the 351. In other words, the engine may run (even fairly well) but things wouldn't be optimal. Emissions might also be effected if spark timing comes into it.
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Cross-Country
Joined: Apr 2003
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Engine Computer
The parts guy at my local Ford dealership wouldn't help me, for my own protection as well as his. He says there are a lot of factors that come into selecting the right computer and that if you wind up with the wrong computer in the vehicle you may not pass emissions testing. He advised me to call Ford Racing. They basically told me that if I can find a truck with a 5.8L, E4OD tranny, not from California or a high altitude region, I should be good if I use the same computer. That's why I posted this question, to see if I can get this info from someone who owns a truck like this. I posted thread on a couple of other forums and one guy with a 93 Bronco, 351W and E4OD says his computer # is E7DF-12A297-A1A. This is strange though because the part #'s for the 351W computers according to both Ford and AutoZone begin with F2TF.
Senior User
Joined: Aug 2000
Posts: 473
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From: Richmond, CA
Engine Computer
hey bradleyj
Even though I have a '90, I do have the setup you are looking for. I have the 5.8L engine and the E4OD transmision. The computer code that is on my rig is 'AOC3'. My rig is still setup for speed density. I am planning on switching over to MAF at some point. Which means a computer and wiring harness from '94 to '96, or a conversion kit from an aftermarket company.
Hope this helps
Even though I have a '90, I do have the setup you are looking for. I have the 5.8L engine and the E4OD transmision. The computer code that is on my rig is 'AOC3'. My rig is still setup for speed density. I am planning on switching over to MAF at some point. Which means a computer and wiring harness from '94 to '96, or a conversion kit from an aftermarket company.
Hope this helps
Post Fiend
Joined: Jan 1997
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From: Enjoying the real world.
Engine Computer
Check out eBay for a good selection. There's a company there that sells ECMs starting at $25.
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New User
Joined: Apr 2003
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From: seattle
Engine Computer
dont quote me but ive herd you can put a 351 cam and heads on a 302 and gain 100 hp. youve got to wire it like the 351 w.plus you should be able to find a harnes and good engine at the local towing auctions.youll have to wait for the write vehicle but youll save alota money
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Joined: Nov 2010
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I have a 93 F-150 with a 4.9 srtight 6 and mine also starts with E7DF. I've been searching all the local junkyard websites for one tonight so I could hopefully just call tomorrow morning and pick one up but all I can find is the F2TF too. Any idea why this is? One more thought/question, I would also think that if the E7DF model controlled so much in the 5.0 and 5.8 V8's how would it possably work in mine? Feel free to share some wisdom!
FTE Legend
Joined: Jun 2006
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From: Ottawa, Ontario
I guess you failed to notice that the thread you dug up was from 2003. In any case what you need to look for is the computer catch code.. that's the print in large letters on the EEC connector. It will tell you what powertrain combo the box is programmed for, the other sequence is just date information and can be ignored.
