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Unread 10-01-2011   #1 (permalink)
Nemesis64 is offline Apprentice


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Question 89 Wiring Harness on 87 Stang

Im getting all my parts together to go about the MAF Conversion and am curious if the 89 mustang 5.0 wiring harness differs any and if how much from the 87 mustang 5.0 wiring harness besides the MAF sensor plug? or is it a pretty much take out old and drop in new?
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Unread 10-01-2011   #2 (permalink)
need4spd90 is offline SHELBY GT 350 Member

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the 1989 computer harness(or a rare 1988 california maf harness) is the ONLY plug&play factory harness for 87-88 mass air conversions...so you're good to go...

you'll still have to add the wiring for the VSS and FPM2 circuits,but thats inside the car,under the carpet,not on the engine harness....
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Unread 10-01-2011   #3 (permalink)
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Thumbs up 89 mustang wiring harness for 87 mustang

Quote:
Originally Posted by need4spd90 View Post
the 1989 computer harness(or a rare 1988 california maf harness) is the ONLY plug&play factory harness for 87-88 mass air conversions...so you're good to go...

you'll still have to add the wiring for the VSS and FPM2 circuits,but thats inside the car,under the carpet,not on the engine harness....
Thanks need4spd90, the harness is on order now, atleast Ill feel better with all new harness in the car less places to check for a bad ground.
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