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My 22 pages of notes on Holley Terminator install

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Old 10-31-2019, 01:18 PM
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Default My 22 pages of notes on Holley Terminator install

Take it for what its worth.. I spent several hours chasing wires and diagrams and tried to keep them in a document that might be useful for others..

This install was on a 2002 Trans Am LS1. I remove the stock ECM and as much wiring as I could as I like a clean look.

Use what you can, throw the rest away or laugh at my work and hope I have a fire extinguisher in the car......

Updated with latest version - car is running with this config...
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File Type: pdf
Holley Wiring.pdf (2.44 MB, 1162 views)

Last edited by JimTA; 01-08-2020 at 09:06 AM.
Old 11-07-2019, 01:34 PM
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Did you keep the factory gauges working or did you change to a Holley dash?
Old 11-07-2019, 01:38 PM
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I opted for digital dash.. I researched and had some theories on using factory gauges, but decided on the digital dash for the ability to tune from it and datalog...
Old 11-08-2019, 07:42 AM
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Nice work man. Thanks
Old 01-08-2020, 09:05 AM
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I updated attachment in original post now that car is up and running with my notes.. At the very least maybe the wiring diagram and connector locations will save someone some time.. .
Sorry the file is so big.. quite a few pics..
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Old 01-12-2020, 02:02 PM
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Lots of great info Jim, I'm still planning out my Terminator X install. This looks like it'll save me some time.
Thanks! Jeremy
Old 01-14-2020, 10:29 AM
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Is this applicable also to the holley dominator?
Old 01-14-2020, 10:33 AM
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The main harness is same for dominator. Your only difference is you have a lot more ins/outs to play with. For example I opted to use a separate cooling fan controller so I could use those 2 outputs for something else. You should have plenty so no need for external controller.
Old 01-18-2020, 05:24 PM
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Ok, so the wiring of some of the in/outs used with the dominator may not be covered in your guide as you may have used less with the Terminator but the main ones are covered then?
Old 01-18-2020, 06:37 PM
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My ins and outs but yours would likely be different.



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