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Old 05-16-2022, 03:56 PM   #1
88Stanger
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Join Date: Mar 2015
Location: Washington State
Posts: 1,654
Holley Terminator Max X & Electronic Speedo

So I just installed the Holley Terminator Max X. The system install was very simple. The interesting thing I found with this was that there is no "stock" setup for a Speedo. Stock meaning programed into the system when you get it. I am running full Autometer Gauges, Tach and Speedo specifically. With that said, the stock tach wire from the Holley system is for a "full" V8 tach system. With my past PSI LS Wiring harness, I had to set up the Tach as a V4 setup, in my case it is dip switches smaller than HB lead, lol. So I had to switch it to V8, that worked perfect. Now for the speedo... there is a setting that you need to setup in the software. Make it somewhat short, i get into the software, found the I/O (Inputs & Outputs) and found the 4 wires on the J1 connector. Output 1 & 2 to Electric Fan, 3 & 4 to IAC system and AC Shutdown with IAC as an Input. So I selected the AC Shutdown (Pin G) and moved it to the Un-Assigned area and then moved from this area the "Speedo" to where the AC Shutdown was. Then found the area in the software for the AC and found the AC Shutdown selection and un-selected it. Save this file to a name I Picked, Save that file to the SD Card located in the handheld unit and downloaded that file to the ECU and tada, that speedo works!
Yes I could have just done this on from the laptop, but I like to have the handheld in view at all times.
I will have a custom tune done by Andrew (he came highly recommended by others on LS Site) and will do it online, this is a new experience for me but looks to be cool.
Just wanted to pass on my experience with the system so far. So far, I really like the system!!
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