please review my MAF conversion plan...
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Joined: Jul 2004
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please review my MAF conversion plan...
I have a 94 Bronco with a 351 and an E4OD. I've done LOTS of research on mass air and I think I finally have a plan that I like. Since Ford (in their infinite wisdom) elected not to make a MAF conversion kit for the E4OD trucks, here's my plan:
1. Buy a new factory wiring harness for a 96 Bronco with Mass air (anyone know how much this will cost? cheaper to buy a custom made harness from one of the aftermarket guys?)
2. Get a used ECM for a 96 351 Truck with an E4OD.
3. Buy a new stock MAF for a 96 from Autozone or whoever.
4. Use my existing injectors (They appear to be the same part numbers based on lookup at Autozone)
5. I already have a K&N kit for a MAF truck, so that will provide pipes and new filtering setup.
I have two questions then:
1. Does the 96 truck have 1 or 2 O2 sensors? If 2, can I splice the two leads together into my single sensor?
2. Are there any other differences in the ECM system between the 94 and 95 351 Trucks that would make this difficult? sensors that the 94 doesn't have etc. that would need to be installed?
Thanks very much for the help.
1. Buy a new factory wiring harness for a 96 Bronco with Mass air (anyone know how much this will cost? cheaper to buy a custom made harness from one of the aftermarket guys?)
2. Get a used ECM for a 96 351 Truck with an E4OD.
3. Buy a new stock MAF for a 96 from Autozone or whoever.
4. Use my existing injectors (They appear to be the same part numbers based on lookup at Autozone)
5. I already have a K&N kit for a MAF truck, so that will provide pipes and new filtering setup.
I have two questions then:
1. Does the 96 truck have 1 or 2 O2 sensors? If 2, can I splice the two leads together into my single sensor?
2. Are there any other differences in the ECM system between the 94 and 95 351 Trucks that would make this difficult? sensors that the 94 doesn't have etc. that would need to be installed?
Thanks very much for the help.
Lead Driver
Joined: Nov 2002
Posts: 9,557
Likes: 44
From: Concord, NC
The 96 is OBD-II, so the computer (96 is EEC-V, ~87-95 is EEC-IV) and wiring will be a good deal different, and it will have a few additional sensors that the 95-older trucks didn't have. The 96 truck actually has three O2 sensors. The forward two might be able to be spliced into one, but the third one has to be after the cat to monitor catalyst function. I'm not really sure this is the ideal plan to go mass air.
Moderator
Joined: Dec 2001
Posts: 22,436
Likes: 17
From: Louisville,Ky.
The MAF that you would by at Auto-zone or wherever is only the insert. You would have to find a housing at a junkyard. 93 doesn't have MAF? I was thinking my friends 93 F150 with the 5.8 has MAF.
Fleet Mechanic
Joined: May 2004
Posts: 1,436
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From: Montana
So was there an outcome to this?I would like to do this on my 92 but im just not sure what parts to use and I had a website that had a kit but it was WAY to much. I know some people on this site have done this conversion but I cant find the threads...I had a list but lost it my understanding was I needed the MAF sensor and the ECU and could rewire the existinge harness to do the job. I dunno.
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Lead Driver
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From: Concord, NC
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Fleet Mechanic
Joined: May 2004
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From: Montana
Yea I saw that one but that looks pretty expensive considering i live in california and they would charge like 500% higher for everything....I remember the thread i was reading metioned swapping injector wires from one side to the other on 2 or 4 cylinders to achieve the diferent firing order and I dont remember having to get more o2 sensors....or an intake for that matter.
Lead Driver
Joined: Nov 2002
Posts: 9,557
Likes: 44
From: Concord, NC
You don't have to add any O2 sensors, but the intake you will have to add if you want mass air. You don't have to do it exactly as he did on the page I linked, but the general process of wiring is exactly the same. You don't need a new intake manifold, you don't need new injectors, you don't need a new throttle body, but you do need a mass air meter, a y-adapter for the dual bore throttle, a SEFI injector harness, and you'll have to change the other wires that he mentions on his website. Search through the 87-96 forum for MAF or mass air and read through what comes up. There are a bunch of really detailed descriptions that I think would help you out.
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