LS1 to LS3 coil wiring question
Thread Starter
Staging Lane
Joined: Jan 2017
Posts: 97
Likes: 2
LS1 to LS3 coil wiring question I switched to Holley valve covers that only accept LS3 style coil packs and now I'm wiring in those coils. Specifically, I have D514A coils.
Engine is a 2002 5.7 LS1, wiring harness from same vehicle.
I purchased new coil wiring plugs, as the 2002 harness does not clip into the new coils.
With the connector clips on the same side, the order of the wires appears to be opposite between the two coil packs, is this correct?
On the 2002 LS1 it goes from one side to the other (in the below picture, right to left):
1. Black (ground)
2. Brown (low ref)
3. Various colors (signal wire)
4. pink (power).
On the LS3 coil wire connector it has the same wires in the same order but Opposite.
1. Red (power?)
2. Blue (signal, same color for all?)
3. Brown (low ref?)
4. Black (ground?)
My question is, is it correct that the order of wires 1 through 4 above are opposite on the ls3 coil packs, or are the wiring connectors I got incorrectly colored?
My old wiring is a little faded so its hard to see, but heres a picture
Engine is a 2002 5.7 LS1, wiring harness from same vehicle.
I purchased new coil wiring plugs, as the 2002 harness does not clip into the new coils.
With the connector clips on the same side, the order of the wires appears to be opposite between the two coil packs, is this correct?
On the 2002 LS1 it goes from one side to the other (in the below picture, right to left):
1. Black (ground)
2. Brown (low ref)
3. Various colors (signal wire)
4. pink (power).
On the LS3 coil wire connector it has the same wires in the same order but Opposite.
1. Red (power?)
2. Blue (signal, same color for all?)
3. Brown (low ref?)
4. Black (ground?)
My question is, is it correct that the order of wires 1 through 4 above are opposite on the ls3 coil packs, or are the wiring connectors I got incorrectly colored?
My old wiring is a little faded so its hard to see, but heres a picture
