Sr20 swap questions - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

subasilvia21 · 04-13-2012, 05:22 PM

New to the Nissan world I have run into a couple problems. I understand how to switch out the harness connector to make the ka harness compatible for the turbo car ECU but I'm not entirely sure Wat to do with the ignighter that I have for the sr, I haven't noticed a connector from the ka harness that will fit in the ignighter connection. Also I don't know Wat to do with the left over connectors for the ka coil. Hopefully these aren't to rookie of questions again I'm really new to the Nissan thing. Thanks for the help if anyone can give me some advise

91ka24 · 04-13-2012, 05:44 PM

So your putting a ka harness on a Sr???

jvega · 04-13-2012, 05:52 PM

SR20DET Swap Engine Harness Wiring Diagram Guide SR SR20

This is all you need^^.
- 3 clips in total that you need from your KA harness (dash clip, and 2 clips that connect to the chassis harness- gray and brown color)
- The rest of the wiring is just extending the MAF wires and the o2 sensor wires (from the SR harness) there is also a PS clip but you don't absolutely need it

unless you are going to do other fancy stuff, then you might need more custom wiring.

But the ignitor chip wiring should be left alone on the sr harness, unless it needs to be fixed or something because its damaged.

subasilvia21 · 04-13-2012, 06:04 PM

K I see, and I think I am going to just use another harness, the black top engine harness will work right?

*fliprayzin240sx* · 04-14-2012, 09:16 AM

umm...match harness to whatever fucking engine you have. If its an S13 SR, S13 SR harness and ECU.

subasilvia21 · 04-14-2012, 09:26 AM

Well I was askin cause I have a black top harness available but I am going to go with that harness is not compatible with my ECU assuming that's Wat u meant from ur reply, thanks for the help .

ExiledLakai · 04-14-2012, 09:56 AM

So I'm guessing your motor did not come with harness? When you say available what do you mean? Do you have it already(ie it came on your motor) or do you have to buy it but its local? If you already have the SR engine harness, your statement of ("I understand how to switch out the harness connector to make the ka harness compatible") is incorrect if you're talking about the ka engine harness. You make the SR engine harness compatible to your KA chassis harness by using the three connectors off of the ka engine harness that jevga has already explained.

So hopefully that's clears it up for you because it still sounds like you don't get it.

subasilvia21 · 04-14-2012, 10:07 AM

Ya I didn't get the sr20 harness with the engine and tranny and I have just been havin a little trouble findin someone to mail me one, and where I live now there isnt a lot of a scene. Ya I understand where I went wrong with my first post. But I have it figured out at this point for Wat I need, thank you for the help

c-los13 · 04-14-2012, 10:11 AM

I have ablacktop ecu, lower harness, and upper. Plug and play lmk :-)

04-13-2012, 05:22 PM	#1
subasilvia21 Join Date: Mar 2012 Location: north dakota Age: 35 Posts: 12 Trader Rating: (0) Feedback Score: 0 reviews	Sr20 swap questions New to the Nissan world I have run into a couple problems. I understand how to switch out the harness connector to make the ka harness compatible for the turbo car ECU but I'm not entirely sure Wat to do with the ignighter that I have for the sr, I haven't noticed a connector from the ka harness that will fit in the ignighter connection. Also I don't know Wat to do with the left over connectors for the ka coil. Hopefully these aren't to rookie of questions again I'm really new to the Nissan thing. Thanks for the help if anyone can give me some advise

04-13-2012, 05:44 PM	#2
91ka24 Zilvia Junkie Join Date: Sep 2010 Location: Oklahoma city, ok Age: 35 Posts: 414 Trader Rating: (11) Feedback Score: 11 reviews	So your putting a ka harness on a Sr??? __________________ Follow me on Ig- Andydennington

04-14-2012, 09:16 AM	#5
fliprayzin240sx Man w/ CTSV & a Car Seat Join Date: Aug 2002 Location: Tampa Posts: 17,998 Trader Rating: (19) Rides Gallery: fliprayzin240sx Feedback Score: 19 reviews	umm...match harness to whatever fucking engine you have. If its an S13 SR, S13 SR harness and ECU. __________________ If you think Zilvia has too many assholes... CLICK HERE!!!

04-13-2012, 05:52 PM	#3
jvega Leaky Injector Join Date: Nov 2010 Location: arizona Age: 36 Posts: 133 Trader Rating: (1) Feedback Score: 1 reviews	SR20DET Swap Engine Harness Wiring Diagram Guide SR SR20 This is all you need^^. - 3 clips in total that you need from your KA harness (dash clip, and 2 clips that connect to the chassis harness- gray and brown color) - The rest of the wiring is just extending the MAF wires and the o2 sensor wires (from the SR harness) there is also a PS clip but you don't absolutely need it unless you are going to do other fancy stuff, then you might need more custom wiring. But the ignitor chip wiring should be left alone on the sr harness, unless it needs to be fixed or something because its damaged.

04-13-2012, 06:04 PM	#4
subasilvia21 Join Date: Mar 2012 Location: north dakota Age: 35 Posts: 12 Trader Rating: (0) Feedback Score: 0 reviews	K I see, and I think I am going to just use another harness, the black top engine harness will work right?

04-14-2012, 09:26 AM	#6
subasilvia21 Join Date: Mar 2012 Location: north dakota Age: 35 Posts: 12 Trader Rating: (0) Feedback Score: 0 reviews	Well I was askin cause I have a black top harness available but I am going to go with that harness is not compatible with my ECU assuming that's Wat u meant from ur reply, thanks for the help .

04-14-2012, 09:56 AM	#7
ExiledLakai Leaky Injector Join Date: Dec 2009 Location: Las Vegas Posts: 72 Trader Rating: (2) Feedback Score: 2 reviews	So I'm guessing your motor did not come with harness? When you say available what do you mean? Do you have it already(ie it came on your motor) or do you have to buy it but its local? If you already have the SR engine harness, your statement of ("I understand how to switch out the harness connector to make the ka harness compatible") is incorrect if you're talking about the ka engine harness. You make the SR engine harness compatible to your KA chassis harness by using the three connectors off of the ka engine harness that jevga has already explained. So hopefully that's clears it up for you because it still sounds like you don't get it.

04-14-2012, 10:07 AM	#8
subasilvia21 Join Date: Mar 2012 Location: north dakota Age: 35 Posts: 12 Trader Rating: (0) Feedback Score: 0 reviews	Ya I didn't get the sr20 harness with the engine and tranny and I have just been havin a little trouble findin someone to mail me one, and where I live now there isnt a lot of a scene. Ya I understand where I went wrong with my first post. But I have it figured out at this point for Wat I need, thank you for the help

04-14-2012, 10:11 AM	#9
c-los13 Zilvia Junkie Join Date: Feb 2010 Location: Edinburg, Texas Age: 36 Posts: 446 Trader Rating: (0) Feedback Score: 0 reviews	I have ablacktop ecu, lower harness, and upper. Plug and play lmk :-)