Ls1 coils

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bps79

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Joined
Mar 15, 2008
Messages
254
Location
Perth
does anyone know how to wire up ls1 coils. Any help would be greatly appreciated
Thanks
Brad
 
yep what do you want to know?
they have 3 inputs (plenty of diagrams on the web)
one is 12volts one is ground and one is input from ECU

first what ECU are you running? if it is the factory ECU then you wont need that J22 ignitor any more.
you need to get the 2 input wires from the J22 (use your wiring diagram to figure that bit out)
they will need to be split as factory ignition is wasted spark. so you have 4 wires - 2 from one wire and 2 from the other.(these are the signal wires - not power)
you will also need to put a relay in there to as the LS1's draw a lot more current then the factory ones.

One problem you will have is the tacho - there is no tacho output on and LS1

before I go any further - is any of the above confusing the shit out of you as if you are not expierenced in this I may need to draw you a picture.

so give me an idea on what you have ie - car - motor and ecu
 
Ive just included the J22 pinouts diagram (attached)
Also pinched some pics and whipped up a quick LS1 wasted spark drawing that I think is the way our LS1's have been wired for our Haltech setups Troy.
Can you please check it when you do up a wiring diagram Troy? lol
 

Attachments

  • Mitsu J722T dual coil ignition module.jpg
    Mitsu J722T dual coil ignition module.jpg
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  • LS1 wasted spark wiring.png
    LS1 wasted spark wiring.png
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  • coil-LS1-Gen3-with-igniter-built-in_1593.jpg
    coil-LS1-Gen3-with-igniter-built-in_1593.jpg
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  • coil-LS1-Gen3-with-igniter-built-in_1594.jpg
    coil-LS1-Gen3-with-igniter-built-in_1594.jpg
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