1993 SD to MAF conversion
#1
1993 SD to MAF conversion
I have done a good amount of searching through this site and a few other places, and nowhere do I find a good write-up on this conversion using parts from a donor vehicle. If anyone knows where theres a good write-up, please shoot the link. My biggest issue is pin out changes, and creating a small harness for the Mass Air Sensor. I have the pigtail from the donor truck, the engine harness, and a 1989 'Stang A9L computer. I just want to make sure I'm armed properly with info before tearing into the truck. By the way, this is going to be done to a 1993 F-150, 302, AOD. Thanks in advance.
#2
Here is what I used when I did mine:
http://www.fordmuscle.com/archives/2...sion/index.php
http://www.fordfuelinjection.com/?p=6
http://www.fordfuelinjection.com/truckpinouts.html
http://www.fordfuelinjection.com/index.php?p=92
http://www.fordfuelinjection.com/?p=7
http://brembs.net/cars/maf_conversion/
http://brembs.net/cars/maf_conversio...ang_wiring.jpg
http://www.fordfuelinjection.com/index.php?p=89
You will also need the '89 mustang EECIV CEL codes. There is a link to it on one of the FFI pages above. I have more info if you need it. This should get you started.
I have two additional suggestions.
1) Before you start the project, get a cheap A/F gauge from summit racing ($29 or $39) and run it for a couple of weeks before your conversion. That will give you an idea of the A/F that you may need to adjust to.
2) Come up with a scheme for water proofing/protecting the computer/harness connector for after you're done.
Good luck,
Lance
If you have any questions feel free to ask.
http://www.fordmuscle.com/archives/2...sion/index.php
http://www.fordfuelinjection.com/?p=6
http://www.fordfuelinjection.com/truckpinouts.html
http://www.fordfuelinjection.com/index.php?p=92
http://www.fordfuelinjection.com/?p=7
http://brembs.net/cars/maf_conversion/
http://brembs.net/cars/maf_conversio...ang_wiring.jpg
http://www.fordfuelinjection.com/index.php?p=89
You will also need the '89 mustang EECIV CEL codes. There is a link to it on one of the FFI pages above. I have more info if you need it. This should get you started.
I have two additional suggestions.
1) Before you start the project, get a cheap A/F gauge from summit racing ($29 or $39) and run it for a couple of weeks before your conversion. That will give you an idea of the A/F that you may need to adjust to.
2) Come up with a scheme for water proofing/protecting the computer/harness connector for after you're done.
Good luck,
Lance
If you have any questions feel free to ask.
#5
There are four reasons:
1) Slightly better mileage - I get a 1.5 mpg bump in city traffic here in LA. Sometimes I get up to 17mpg. I've never measured highway mpg.
2) Quicker acceleration - The mustang computer has a higher timing advancement table. I can keep up with the newer trucks from a standing start or getting on the freeway. Not that I try to, but I can.
3) Basis for future changes - Our old SD systems can only guess the amount of air that is consumed by the engined based on the values hard-coded in the computer. The MAF system actually measures the amount of airgoing into the engine and therefore can measure out the exact amount of gas needed. And changes to manifolds cams, heads, over-boring, or forced induction will change the amount of air consumed and may push the usage beyond the SD computer's "understanding". You can put in a more "wild" cam if you wanted or build a "stoker".
4) Age related changes - Just like point 3 the MAF can better measure changes in the engine air consumption than the SD system. THe MAF will age more gracefully.
-Lance
1) Slightly better mileage - I get a 1.5 mpg bump in city traffic here in LA. Sometimes I get up to 17mpg. I've never measured highway mpg.
2) Quicker acceleration - The mustang computer has a higher timing advancement table. I can keep up with the newer trucks from a standing start or getting on the freeway. Not that I try to, but I can.
3) Basis for future changes - Our old SD systems can only guess the amount of air that is consumed by the engined based on the values hard-coded in the computer. The MAF system actually measures the amount of airgoing into the engine and therefore can measure out the exact amount of gas needed. And changes to manifolds cams, heads, over-boring, or forced induction will change the amount of air consumed and may push the usage beyond the SD computer's "understanding". You can put in a more "wild" cam if you wanted or build a "stoker".
4) Age related changes - Just like point 3 the MAF can better measure changes in the engine air consumption than the SD system. THe MAF will age more gracefully.
-Lance
#7
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Ok so I now have the engine harness, maf sensor off the 95 F-150 and the Mustang, the mustang computer, and ordered the E303 Ford Racing camshaft. About to modify the harness for the new firing order. While the engine is opened up, going to install new main bearings, rob bearings, oil and water pumps. This is going to be a fun lil project. Also going with Motorsport "shorty" headers.