View Poll Results: Would you like a tech article on how to re-wire your factory harness to MAF?
Yes, I would
496
95.02%
No thanks
4
0.77%
I duno, I might...
22
4.21%
Voters: 522. You may not vote on this poll
SD to MAF Conversion - Write up?
#33
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 .
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 .
#34
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.
Just though I'd mention that since I tried it.
#35
#36
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/
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/
#37
#38
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.
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
#40
#42
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.
#45
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)