LSx Swap Harness How To Simple & Free DIY Standalone on the Test Stand
Showing the cheapest, fastest and easiest way to setup your LSx harness in your swap project. Detailed video of how to make the stock unmodified LS truck harness work by just giving it power in two spots. This method is simple, free and gets the engine running, but it sure isn't pretty.
People often ask me how I run the LS motors without modifying the factory harness so I make this quick list of what I do:
-
First make sure that the
VATS (
Vehicle Anit Theft
System) is disabled in the
PCM by having a tuner turn it off when he "
Flashes" the PCM. (You may want him to turn off your emissions at the same time.)
-
Give power to the main fuse block terminal post.
- Then give power to pin A9 of the C1 plug of the fuse block. This will be you ignition hot. Thats it.
- Make sure that you've given the fuel rail about 58
PSI of fuel and it'll run.
I control the starter with a seperate switch or you can just jump the solenoid.
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To have your VATS removed from your PCM or to just buy another PCM already flashed the way that you want it, "CoolMike222" on eBay sells this service cheap and I know that he's a good trustworthy guy from previous transactions and interactions with him.
Here's a link for example.
http://pages.ebay.com/link/?nav=item
....
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The link below from LT1swap.com shows you a photo to help you find where to give power.
http://lt1swap.com/underhoodfuseblock...
Now, that's just one example.
It's the cheapest, fastest and easiest setup, but also the ugliest setup. To accomplish other harness methods for a cleaner less cluttered looking install, you must not be afraid of reading a wiring diagram.
Once you look at it and see where
I've told you to give power to, then you can follow that to know where to give power if you chose to run without the stock fuse block.
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