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post #1 of 8 (permalink) Old 05-27-2007, 12:46 PM Thread Starter
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MAP to MAF

How hard is it to convert to a MAF, especially if I am going to be doing some upgrades. It would be easier to tune. Do I just need to ECU, the harness, and the MAF? How involved is this?


-Brian
1989 Mercury Cougar - Anything but the Ordinary

Fully Built 4.2 Coming Soon, Parts include:
SC Block, 4.2 Crank, Scat H Beam Rods, Wiseco Pistons, Custom Comp Cam, 3/8 Main Stud Girdle, Ported/Polished Split Port Heads and Lower Intake, Windstar Upper, Heavier Springs, 1.73 Roller Rockers, BBK Valve Covers, Kooks long tube headers, Aluminum Radiator.

It May Not Be Pretty When Finished, But It'll Perform Pretty Darn Well.
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post #2 of 8 (permalink) Old 05-27-2007, 12:54 PM
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you need a donor car for the eec harness and ecu 91-93

64 ford galaxie -FE powered beast!- sleeping giant
69 cougar standard- 347/c6 -efi restomod, heidts prog 4 link heavily modified front, custom strutrods boxed lowers rollerperches 620 lowering springs! meier shock tower brace
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post #3 of 8 (permalink) Old 05-27-2007, 01:17 PM Thread Starter
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How large is the harness, and does it require removing the dash at all? If it does I'm not sure if I would attempt that.


-Brian
1989 Mercury Cougar - Anything but the Ordinary

Fully Built 4.2 Coming Soon, Parts include:
SC Block, 4.2 Crank, Scat H Beam Rods, Wiseco Pistons, Custom Comp Cam, 3/8 Main Stud Girdle, Ported/Polished Split Port Heads and Lower Intake, Windstar Upper, Heavier Springs, 1.73 Roller Rockers, BBK Valve Covers, Kooks long tube headers, Aluminum Radiator.

It May Not Be Pretty When Finished, But It'll Perform Pretty Darn Well.
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post #4 of 8 (permalink) Old 05-27-2007, 02:48 PM
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Keep the MAP,, unless your gonna put in a large cam then the MAP should be fine.. the EEC does have a decent amount of adaptive learning available.
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post #5 of 8 (permalink) Old 05-27-2007, 03:09 PM
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If you DO decide that you want to do it, it's about the same procedure on the 3.8 cars as it is on the 5.0L cars and a few minutes on Google will get you a couple of pretty good writeups.

Josh Keady

1994 Super Coupe ('93 5.0L swap), 1990 Tbird 3.8L, 1982 Honda CB900F, 1972 F-100 SportCustom 4x4, 1970 Chevy Custom Camper / 20
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post #6 of 8 (permalink) Old 05-27-2007, 06:06 PM
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Quote:
Originally Posted by th3subtl3on3 View Post
How large is the harness, and does it require removing the dash at all? If it does I'm not sure if I would attempt that.
no, but you have to remove the glovebox and cpu and the connectors in the rh kick panel. it the the whole right hand harness you need and the engien overlay as well .

64 ford galaxie -FE powered beast!- sleeping giant
69 cougar standard- 347/c6 -efi restomod, heidts prog 4 link heavily modified front, custom strutrods boxed lowers rollerperches 620 lowering springs! meier shock tower brace
96 f150 supercab lifted beast! 351 powered beast
87 shasta roadmaster 29ft travel trailer- pimpdaddy camping!
mn12 less!
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post #7 of 8 (permalink) Old 05-27-2007, 06:14 PM
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if going boosted just stay with the speed density it will actually be easier than having to calibrate a maf. if you really want to do some major changes anyways look into megasquirt stand alone the basic ecus start at 250 and go from there depending on the options they have a few different upgrades since its came out. you can use your stock wiring harness and you just have to steal the pins from the stock ecu. http://www.megasquirt.info/ theres alot to learn about engine managment but if you are willing you can have full range adjustibility and diagnostics. megasquirt can also be setup to just control fuel and timing too if you wanted it too. theres lots of options

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post #8 of 8 (permalink) Old 08-25-2008, 12:37 PM Thread Starter
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Well to bring this back up again, I did grab the wiring harness and ecu out of a 91 on Saturday. Not sure if I got everything though. Think I need to go back and get the engine over lay part since I grabbed the main harness. Is this correct?


-Brian
1989 Mercury Cougar - Anything but the Ordinary

Fully Built 4.2 Coming Soon, Parts include:
SC Block, 4.2 Crank, Scat H Beam Rods, Wiseco Pistons, Custom Comp Cam, 3/8 Main Stud Girdle, Ported/Polished Split Port Heads and Lower Intake, Windstar Upper, Heavier Springs, 1.73 Roller Rockers, BBK Valve Covers, Kooks long tube headers, Aluminum Radiator.

It May Not Be Pretty When Finished, But It'll Perform Pretty Darn Well.
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