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Controlling spark only with the LS1 PCM?

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Old 05-05-2009, 05:02 AM
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Default Controlling spark only with the LS1 PCM?

Who here is using the LS1 PCM to control only the spark? Anyone have info on doing this?
Old 05-05-2009, 07:23 PM
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Not a realistic idea, PCM would go nuts with all the stuff not working and/or connected. MSD makes a computer module to run the ignition for swaps that are running a carb.

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Old 05-05-2009, 08:33 PM
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I know MSD makes that box...I've used it before. It's not an ideal setup for powerful turbo or nitrous cars though because it has a few issues powering the coils.

I've seen the stock PCM used to control spark only before, I think it was on here or yellowbullet. I don't see why it would be an issue. Basically just eliminating the injectors and MAF.




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