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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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Old 05-10-2009, 09:32 PM
Tyler Burdett Tyler Burdett is offline
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engine swap. wiring harness?

I have a 1994 f150, 4.9l, m50d tranny, and ive been looking at a jasper remanufactured 302 for a 1994 mustang cobra. i know that the engine will fit my tranny but what should i do about my wiring harness? would a mustang or an f150 wiring harness work?
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Old 05-10-2009, 11:00 PM
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Conanski Conanski is offline
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You need a truck harness and either a truck computer or better yet a mustang computer, though you also need a mass air harness for the mustang processor.
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1990 5.0HO AOD XLT X-Cab F150 3.55LS, 1994 3.0L 5-sp x-cab Ranger 3.45, 2004 3.0L 5-sp X-cab Ranger Edge 4.10, 2004 2.5L 5-spd Subaru Legacy
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Old 05-11-2009, 12:27 PM
Tyler Burdett Tyler Burdett is offline
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so i should buy an f150 302 harness, mustang ecu, and a mass air harness?
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Old 05-11-2009, 12:39 PM
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If you can find a mass air truck harness you'll have something that fits the body correctly and will plug right in to the motor and whatever EEC processor you get. But if you can't get one you'll have to do some editing on your existing I6 harness. For that use any MAF harness from a Mustang or Lincoln or T-bird, remove the injector and mair meter wires from it and insert them into your existing truck harness. The reason the car harness isn't a direct fit is because the computer is housed on the passenger side instead of the drivers side so it's assembled all backwords.
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Paul (Conan) O'Brien

1990 5.0HO AOD XLT X-Cab F150 3.55LS, 1994 3.0L 5-sp x-cab Ranger 3.45, 2004 3.0L 5-sp X-cab Ranger Edge 4.10, 2004 2.5L 5-spd Subaru Legacy
1996 Kawasaki ZX11D, 2004 Honda 599, 2008 Kawasaki KLR650
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Old 05-11-2009, 12:45 PM
Tyler Burdett Tyler Burdett is offline
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wont i have to get rid of my I6 harness completely for my v8?
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Old 05-11-2009, 12:45 PM
 
 
 
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