LS1 coil wiring
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From: Norn Iron
LS1 coil wiring I tried a search, but couldnt find any info.
Im doing an install using an LS1, with an aftermarket ecu, but I need to know what the 4 wires are going to each coil ??
I can assume one is a +12v, one a -ve trigger, and one a chassis ground.
What is the 4th wire for ??
Cheers, Stevie
Im doing an install using an LS1, with an aftermarket ecu, but I need to know what the 4 wires are going to each coil ??
I can assume one is a +12v, one a -ve trigger, and one a chassis ground.
What is the 4th wire for ??
Cheers, Stevie
From Corvette fuel injection, the four wires are:
Ignition positive voltage - pink
Ignition Control Signal - light blue, purple, dark green, or red depending on which coil
Reference low - brown
Ground - black
Not sure what reference low is but i'd assume it is the difference between ignition control signal and reference low that fires the coil, not just the ignition control signal itself. I'm just guessing so feel free to correct me if i'm wrong.
Ignition positive voltage - pink
Ignition Control Signal - light blue, purple, dark green, or red depending on which coil
Reference low - brown
Ground - black
Not sure what reference low is but i'd assume it is the difference between ignition control signal and reference low that fires the coil, not just the ignition control signal itself. I'm just guessing so feel free to correct me if i'm wrong.
Although I found this sweet schematic of the ignition system. Looking at this leads me to believe you should hook the "reference low" wires (brown) up to a common ground at the ecu. Normally that would be pin 60 and 61 but you don't have those i guess.
Thread Starter
9 Second Club
Joined: Nov 2003
Posts: 13,616
Likes: 185
From: Norn Iron
Its a DTA P8Pro. I had been using it on my previous Rover V8 twin turbo.
www.dtafast.co.uk
So, Id say Im probably one of the first to do it here.
www.dtafast.co.uk
So, Id say Im probably one of the first to do it here.
Originally Posted by P Mack
Although I found this sweet schematic of the ignition system. Looking at this leads me to believe you should hook the "reference low" wires (brown) up to a common ground at the ecu. Normally that would be pin 60 and 61 but you don't have those i guess.
