|
FC CAS patch harness.
Hello all. I posted this in my build thread and at the time didn’t even realize there was a section dedicated to Haltech so maybe it’s better here. I bought an ECU connector and am making my own patch harness to connect my PS2K to the stock harness of my S5. I figured a patch harness was easier than trying to lay upside down on the passengers floor and repin the original. Sure I could buy a pre made one or a flying lead harness, but this project is more about the journey than the destination. Anyways, I think I have most of the major wiring figured out but I'm having trouble with the CAS. The manual shows the red and green (positives) tied together but the haltech does not want that. Am I missing something simple or do I just find an unused wire in the harness so i can split them? Also wouldn't mind if someone more in the know looked what I have over and point out anything else i may be missing. Obviously, this is just injectors, coils, and CAS. I included a sample from the manual to show what I'm talking about with the CAS wiring. I threw this together today and included the stock ECU locations where I will be connecting. https://cimg9.ibsrv.net/gimg/www.rx7...3c5c96be7.jpeg |
It’s sorted. The wire colors on the Hal tech schematic are only good up until the CAS connector, then they switch places on the S5 engine harness. Here is the updated schematic in case anyone is ever searching and needs it. https://cimg2.ibsrv.net/gimg/www.rx7...66900685f.jpeg |
Chris informed me that the above would NOT work and that this is how it needs to be if running the CAS as 3 wire.
https://cimg3.ibsrv.net/gimg/www.rx7...81a3d182b4.jpg |
Looks great man! I'm also doing this for my S5 6 port turbo. So the last image is the correct diagram?
Originally Posted by Locoelectrician
(Post 12301784)
Chris informed me that the above would NOT work and that this is how it needs to be if running the CAS as 3 wire.
https://cimg3.ibsrv.net/gimg/www.rx7...81a3d182b4.jpg |
Yes.
|
Originally Posted by Locoelectrician
(Post 12352136)
Yes.
|
Originally Posted by Hygoog
(Post 12352444)
Is there a reason why your Pin 11 isn't hooked up for 12v switched? How are you supplying power to your haltech?
|
Originally Posted by Locoelectrician
(Post 12352451)
That drawing was just for the CAS. The rest of the patch harness isn’t illustrated there. At the time I was just trying to get the CAS straight so I made the drawing as simple as possible.
|
I’m running premix so the OMP is long gone. PM me and I can get you what you need though.
|
| All times are GMT -5. The time now is 01:36 PM. |
© 2024 MH Sub I, LLC dba Internet Brands