2G Knock sensor need help hacked up wiring harness trying to fix

[Robert OShields]

A little about the car its a 96 gsx with mostly stock besides previous owner installed a 99 cas and a 99 blackbox ecu with ceddymods on it he gave me all the stuff to tune it well at least the cord I had to go get the software myself but it was fine till recently had to buy new turbo so figured I would do some upgrades, bought a new 20g turbo and new injectors I bought some 560 rc injectors and I have a left over set of 1200rc injectors from my buddys project, but any ways later down the road stuff put new injectors in and the turbo and went to check my dtcs after the first start and warm up and I got a p0325 code for knock sensor circuit malfunction went and got new knock sensor and as I was replacing it noticed that the wires had been cut by previous owner an now i am trying to fix it if I could get some help that would be amazing here is some pics of what I am dealing with under the hood

Any help would be greatly appreciated

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[DogWhistle]

Good pics. These help. Does the black wire, outside of the two wires wrapped, come up the harness and turn around and go somewhere else? To a ground? It is important to know because, you can see the green wrapping on part of the harness. That is an emi shielded casing because the signals from the knock sensor are small, so the casing helps preserve the signal all the way to the ecu.

You can make your own extended emi casing with foil and tape, however, you need to determine where the black wire is coming from and going to before you seal it inside with the knock sensor wires. If it carries current, your knock sensor it may not be able to send your knock signals completely, or at all.

Use the Maintenance section on here to get the wiring diagrams for a 99 to see what should be included for wires and where they should be terminated.

 

[Robert OShields]

Thank you so much for your help I am gonna dive into it more this weekend I did look at the wiring diagrams and I haven't tested them yet though just been doing some reading but I did test with multi meter to see if any where connected to the ground on the battery and the only one was the black one that goes to the plug I havent tested the black wire that runs next to the green and white

 

[Robert OShields]

I actually ended up having some time to mess with it today and the black wire that runs back along the green and white wire has no power in it and is a key on ground otherwise it goes no where so I am assuming that the ecu grounds that black wire same as the other black wire that is coming out of the GW with the white wire, so I think if I just get rid of the splice and make it shorter so its not all bundled up in the corner it might fix it seems to follow the wire diagram too but they dont show the extra ground that loops back threw systems

 

[Lol_Sti_]

I actually ended up having some time to mess with it today and the black wire that runs back along the green and white wire has no power in it and is a key on ground otherwise it goes no where so I am assuming that the ecu grounds that black wire same as the other black wire that is coming out of the GW with the white wire, so I think if I just get rid of the splice and make it shorter so its not all bundled up in the corner it might fix it seems to follow the wire diagram too but they dont show the extra ground that loops back threw systems

Hey I’m going through the seem issues with my 95 eclipse someone hardwired my knock sensor straight throwing the same code on my Dsmlinkv3 for some reason I was wondering if black to black connection is right and white to red is correct for signal to ecu I believe the black is ground and white is your signal wire. Thanks