I want to make my own wiring harness. does anyone koow where can i buy the harness to ecu connectors?

 

Rywire Motorsports Electronics : Home

 

More importantly, where do you buy the pins and connectors for the rest of the harness stateside?

 

A coworker who does a lot of harness work for motorcycle builds turned me on to this site, It has a lot of the older style Sumi/AMP/etc stuff that we need for our harnesses. Prices are good for small batch orders too.

Motorcycle Connectors

 

Cycle terminal doesn't have the majority of them. Trust me, I tried. Only suppliers I could find online were either out of business, or in Asia.

 

I used to get small order stuff from newunitedracetech.com, but that site is defunct now. They had an endless catalog with CAD renderings of at least a few of each type, which made it easy (but tedious due to the sheer volume of stuff) to dig through and find what you were looking for. It got easier, obviously, the more you did it as you started to learn what you already had.

Seems like OP needs to clarify what connectors he's looking for. OBD1 or OBD2, what connectors specifically, how many, etc. The stuff is still available, you just have to know where to look for specific items.

 

I bought connectors for my car here https://connectortrade.com/

 

Engine side connectors, budget tools, wire splices, Faston (spade) terminals, barrel/bullet/ring terminals, etc:

https://www.corsa-technic.com/catego...category_id=47
https://www.bmotorsports.com/shop/in...73ncijqi1ehrt2


Cabin side stuff (ECU, the green chassis connectors, etc) are easy to find at Mouser once you sort out what you need:

https://www.mouser.com/

Sleeving, Tefzel wire, terminals, race car stuff, good prices on Deutsch DTM connectors:

https://prowireusa.com/

TXL wire:

https://4rcustomswire.com/

 

https://www.hamotorsports.com/collec...gs-pins-wiring

 

Those are expensive.