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1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

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View Poll Results: Would you like a tech article on how to re-wire your factory harness to MAF?
Yes, I would 473 94.98%
No thanks 4 0.80%
I duno, I might... 21 4.22%
Voters: 498. You may not vote on this poll

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  #31  
Old 03-22-2007, 05:57 PM
fordman16b fordman16b is offline
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I would love to see a writeup about this. I am getting ready to covert to maf in my truck. Thanks in advance.
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  #32  
Old 03-22-2007, 07:06 PM
Neilster999 Neilster999 is offline
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Wow sounds like you know your poop thanks man,................Neil
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  #33  
Old 03-22-2007, 08:36 PM
lostin90s lostin90s is offline
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OK check you facts
There are several Original Maf 302 equipped 94's with E4OD with 1 O2 sensor out there I own 1 (yes it has MAF in air tube. ). And have got a MAF setup off another 94 here in, PA ,and NY . But I've done 3 MAF conversions on 90 up ,with stock junk yard stuff . Which is what should be done first .Show them how to use stock parts . Which average me about $350 some less some more. with ECM,air box ,maf and harness. If you have a 93 up it just swap out harness (you will have to put cab plug on newer harness and do away with few wire. )(or cut and add the wires and change plugs) And add Maf ,airbox ,engine harness,ETC. A pre 93 is little harder with the Cab related plug changes ETC.
The 351 will run fine on the 302 ECM but I bet they run better with the right one (lighting ) ECM .
Course These have been like year changes with one 92 old style and on the simple end of it. I read a old post on what wires to switch ETC thats what got me to do mine.

Then do a mustang related swap as the parts are common. Any way good luck guys .
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94 F150 XLT 4x4 SC LB MAF 302 E4od 3:55 ls rear
MSD blaster coil ,cap rotor ,Fordracing 9mm wires
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  #34  
Old 03-22-2007, 09:14 PM
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All good stuff Lostin except for your comment about the 302 computer for the 351W. That's fine for idle and mid-range RPMs but once you reach the 4000 rpm range (under load - towing, hauling, hard acceleration) if you were to watch the exhaust with a wide-band O2 meter as I've done, you'll see that things are running insanely lean.

Just though I'd mention that since I tried it.
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  #35  
Old 03-22-2007, 10:41 PM
toddol1971 toddol1971 is offline
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So for around 350 to 400 bucks I can get all the stuff from the junk yard & put it in? Any other cost than that? If you get it from the jy is it just plug & play or is there alot of spliceing? I have an 87 302 4spd
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  #36  
Old 03-23-2007, 07:37 AM
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The first gen lightnings were not mass air...

toddol1971, I swapped to mass air in my 87 and had a thread about it a while back (2 or 3 years maybe) if you want to search for it. The process is a little different (easier maybe?) on the 87 and 88 because the engine harness is entirely separate from the rest of the under-hood harness. You have to add wires and move a couple others, so it's not really plug-and play. See this website: http://brembs.net/cars/maf_conversion/
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  #37  
Old 03-23-2007, 09:20 PM
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In my swap, I simply added/changed wires in the factory harness and added the two sensors (MAF and another o2).

Would be the same if I took a junkyard harness and changed that and then put it on my truck.

Hopefully I can write it up in the next week or so.
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  #38  
Old 03-30-2007, 10:34 PM
4X4ER 4X4ER is offline
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hello I just put a 5.0 in my 90 bronco it has the mas air conv from summit racing I bought 5 yrs ago I had in my f150 5.0 5spd it worked great,I put the 5.0 and the 5 spd in a 89 bronco 2 yrs later and again it ran great,I whent through the motor and put in it my 90 bronco with the same kit the motor runs great the automatic acts like its sliping you really have to stand on it to get it to move, if you shift it to low manualy it pulls easier when you shift to 2nd no change 3rd it shifts up.
it acts like its got 2nd& 3rd no 1rst or over drive and it wont down shift.
any ideas this is got me stumped and thinking I might have to put in the 5spd now.
I know theres others out there that the same set up and run auto's is it my computer?
please help.

Last edited by 4X4ER; 03-30-2007 at 10:49 PM. Reason: sorry im not very good on computers
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  #39  
Old 03-30-2007, 10:40 PM
4X4ER 4X4ER is offline
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Cool mas air conversion trany prob, please help

trying to fix mistake

Last edited by 4X4ER; 03-30-2007 at 10:59 PM. Reason: new to sight
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  #40  
Old 04-01-2007, 01:51 PM
FranzB FranzB is offline
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Yes, very interested. Looking at doing this to a 95 Bronco 351 E40D and am stumped as to how to get the tranny part working. Baumann TCS is a possibility but am not that interested in dropping the transmission pan to rewire the solenoids to hook up to their TCS.
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  #41  
Old 04-01-2007, 01:54 PM
mgraveman mgraveman is offline
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some early 90's crown vics came with 351's. Maybe those were MAF?
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  #42  
Old 04-01-2007, 03:22 PM
FranzB FranzB is offline
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Sorry, guess I didn't see the post where Justin decided against the E40D write-up. In any case I think I just came across the answer here: http://ford.off-road.com/ford/articl....jsp?id=198382 where he uses a BIO0 processor that handles the E40D for those of you who care.
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  #43  
Old 04-01-2007, 04:07 PM
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What are the benefits of doing this swap..........Neil
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  #44  
Old 04-01-2007, 04:13 PM
mgraveman mgraveman is offline
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Quote:
Originally Posted by Neilster999
What are the benefits of doing this swap..........Neil
already answered on page 2.
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  #45  
Old 04-01-2007, 04:14 PM
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I am just looking for better throttle response, slightly better mileage, and better use of my K/N air intake which I will probably have to modify again after the conversion. Not looking for huge horsepower increases here. (Plus in my mind it's a complete waste to actuate a whole bank of fuel injectors at once. What moron thought of that when SEFI had been around for years when they built that truck in 95)
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Old 04-01-2007, 04:14 PM
 
 
 
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