Chinese LS Harness (from Nathan Wei) - Unboxing and First Look

Hello, I have one of Nathans harness for a 2003 5.3, no trans and I cant figure his instructions for the Underdash wires. I tried to talk to him but his Google translate isnt very good. Can you help? Brown wire goes where? Black says Speedo on Module? White says Tach, thats basic. Im not using his 2 fan wires. orange says park Neutral, description says To Ground in Park or Neutral? Purple says Brake signal to 12v Brake not apply??? Im not using Grey or Pink, Multiple Black wire, chassis ground, basic. Red Fuel pump relays, should just go to 12v key on? Also has a Black/Red wire that has "Tacho" on it, not sure if that is the same as White Tach wire? Thanks for any help!

Ordered a Nathan Wei harness and the o2 sensors were not hooked up correctly. I haven't check the tach wire but I have a feeling that's wrong as well because it's not reading correctly after hooking it up. Just found out the map sensor might be wrong also...for 300 bucks I could of just paid another 200 and got the psi harness or a BP automotive one. Or just bought the $80 ebay harness and rewire it myself be4 I hooked it up... 4/10 would not recommend.

He never tests them to see if they work

Who did you contact in China? How do I get in touch with them?

I just bought a psi harness for multec injectors and 4l60e for 98 bucks and it’s working perfectly. I did get the plastic wrapping and it’s looks really cheap .

Awesome thank you. Where can I get a harness by Nathan?

To use this harness with Drive by Wire would I just need a DBW pedal or would I still need the additional module (you can tell I'm new to all this)? Have LQ4 6.0 DBW engine/ECU that's going into a 71 Nova.

What about an oil sending unit wire

I'm going to use the factory harness for my swap. Planning on removing what I don't need.

Nice work 😊

Did you ever got that harness installed?

I ordered the same harness an never got any instructions lol does anyone possible have a picture of the manual they sent for the under dash wires

any links to the harness?

A builder put one of those in my 6.0 4l80e swap.....it's getting yanked no O2 sensors and it caused shift issues. PSI also seals the wires into the PCM.

How is the harness now few months later? Did it work well?

Also. The wires that don’t have the same color. Is it a problem with the vehicle operating, or not that big of a deal.

I know I’m late for this video, but I know a guy that uses only these harnesses. I’m gonna watch your video again so I can catch the guy name you said build harnesses. I’m a cheapo but I also know that it’s important to at least have good wires.

Did you find the extended length was necessary or would it have made it under the dash without it? Also, the two red wires that tie to the starter, are they fused at near the ends (hard to see)? You’d really want a fuse near that starter connection.

Thank you for the review I have been considering getting this exact harness you just got your self a new subscriber

Best video I’ve seen all decade

I had this exact harness saved in my watchlist on ebay and they through me an offer of $159.99 and I couldnt pass it up! Just got it running yesterday and so far so good, I just have to figure out how to hook into it to log my Wideband O2 sensor with Hptuners.

Now we need to see a revealing video on what project this harness is going :)

Good to see some content! Been awhile!

Thank you for this info

I refuse to support china in any and every way I can avoid