Has anyone attempted to make their own X-link harness? I'm trying to use a throttle body from a LSA and control it with my gen 3 (2003) 5.3 computer. The X-Link harness looks like a nice product, but I am on a budget and I don't like to buy things if I can build them myself. Looking at the signals from the 5.3 TB and the LSA TB, it looks like the 5.3 TP1 signal is a 0.38V - 4.50V signal and the TP2 signal is a 0.28V-4.60V. The LSA TP1 signal is 4.75V-0.325V and the TP2 signal is 0.25V-4.59V. I'm hoping the the TP2 signals are close enough to work. I'm hoping I just need to inverse the TP1 signal from the LSA and change the gain a little bit. Has anyone else tried this and spent like $20 in parts instead of the $235 on an X-link?

 

Most do not. Good luck! It will be cool if it works.

 

If you can figure it out you will be praised by many since the x-link is sold out or too costly for most

 

If i had the pinout i could build one myself with a diagram or understanding of how it works.

 

If you are savy with micro controllers you can sample A in and then do simple conversions to supply a voltage back out. But it is always easier said than done.

 

I'm on a budget too!

But my own time is actually worth something...

 

I plan to figure this out. I have ordered an Operational Amplifier Microchip and some resistors. I will report back when they show up and after I have tested it.

 

Good luck! Not many EE's or electronics hobbiest types mod trucks

 

I do...guess you never read my "how do you support your mod" post. Im posting from work right now !! and may get fired

 

What do you mean? My most productive truck thinking time is at work