Coil Switching Wire
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Post Fiend
Joined: Jan 2004
Posts: 6,610
Likes: 2
From: Northwest, Arkansas
Coil Switching Wire
Does anyone know or have a diagram for the coil over plug wiring on a 5.4 F150 2002. I am looking to find out which wire one the COP plug is the coil switching wire.
Moderator
Joined: Jan 2001
Posts: 57,025
Likes: 2,756
From: Virginia
I looked at the 99 wiring diagram I have, and on that one, a red/lightgreen wire is the common B+ to all the coils, and the switched wire that goes to the computer has a different color on each coil.
