SR20DET wiring main ing pwr, 02 sensor pwr, and coil pack pwr - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Row · 04-25-2009, 10:23 PM

I ran into some confusion when i was soldering the Black/red stripe wire, Blue/red stripe wire and the brown wire. FRsport notes that these three wires should be soldered together.
SR20DET Swap Engine Harness Wiring Diagram Guide SR SR20
I followed the write up they have, but i just want to verify with the zilvia community if i did this soldering part correctly.

I'm a bit skeptical because that's alot of current flowing through these wires

tsanumei4321 · 04-27-2009, 03:39 AM

i just did the same a few hours ago seriously imma check it later though, should be ok

GSXRJJordan · 04-27-2009, 04:27 AM

Yup, they're all switched +12V. Make sure you've got at least 10A on it though, cause the ECU/sensors/ignitier/coilpacks pull about 8A at full tilt.

If you have any wiring questions, shoot me a PM, I pwn harnesses all day long

gnxregal · 06-09-2009, 10:12 PM

I noticed on my SR Harness there were two blue / red stripe. One wire is larger than the other. Do all of these wires go together with the red / black?

GSXRJJordan · 06-10-2009, 12:11 AM

^^^ Yup, I believe so. I'd have to know where they're going to tell you for sure, but it sounds right.

slociv · 06-11-2009, 06:26 AM

If your talking s13, the front plug behind the passenger headlight then no. The thick blue/red and the thick Black/red both go to the thick black/red. I think it was black red, either way the three thickest wires. The thin blue.red goes to the other thin blue red.

GSXRJJordan · 06-11-2009, 01:02 PM

They're all ignition switched +12v - black/red is black/white elsewhere, and actually goes to the switch (and is fused by the green 30amp fusible link), blue/red is coilpack power, fused separately at 10amp.

corey240 · 10-07-2009, 04:38 PM

I have a question pertaining to this. I am switching my harness from s14 to s13. I found and followed the black/red wire in the s14. I CANNOT find the same wire in the dash harness on the s13. Where is the end of it that connects to the black/red wire in the sr harness?

GSXRJJordan · 10-07-2009, 05:14 PM

Quote:

Originally Posted by corey240

I have a question pertaining to this. I am switching my harness from s14 to s13. I found and followed the black/red wire in the s14. I CANNOT find the same wire in the dash harness on the s13. Where is the end of it that connects to the black/red wire in the sr harness?

Good question! There are a few things different between the s13 and s14 body harnesses... First of all, the s14 feeds ignition-switched +12v to the ECU harness via a single black/red wire - the s14 engine harness then splits this everywhere it needs to. Constant +12v is supplied by a small red wire with a silver hash mark on it, and feeds the ECU relay (which allows the ecu to turn itself on and off). If you're using a s13 harness in an s14, you don't necessaily have to wire in a relay, you can just take all the leads from the s13 power plugs back through the firewall and connect them to the proper wires on the s14 power plug (m63/f3 in the fsm). Not all the wire colors match though, and you'll have to save the wiper wiring from the s14 engine harness if you want your wipers to work.

corey240 · 10-07-2009, 06:54 PM

What I dont understand is where the wire connects to now. I removed my s13 sr engine harness from my s14 chassis. Now in the s13 chassis. I cant seem to figure out where the ignition power wire connects in the s13 chassis. I guess theres supposed to be a plug from the s13 dash harness that the engine harness connects to near the ecu. Mine was cut out. So now I have to hard wire the harnesses together, not a problem, except, I cannot find this one wire not can I figure out what wire it goes to.

I mean, it says to connect it to the black with red wire in the harness, but I dont have it. My car is caged and I cut the dash out today and opened the harness to still no find it leading to the passenger side. I followed for reference in my s14. Am I missing somthing? I cant get a usuable s13 fsm link ANYWHERE so im stumped on this now. In the S14 thes 2 wires were just connnected via a locking type plug. I had to cut that plug off the sr harness to switch them over when I saw it wasnt the same in the new car.

04-25-2009, 10:23 PM	#1
Row BANNED Join Date: Aug 2008 Location: Monterey Park Age: 33 Posts: 274 Trader Rating: (27) Feedback Score: 27 reviews	SR20DET wiring main ing pwr, 02 sensor pwr, and coil pack pwr I ran into some confusion when i was soldering the Black/red stripe wire, Blue/red stripe wire and the brown wire. FRsport notes that these three wires should be soldered together. SR20DET Swap Engine Harness Wiring Diagram Guide SR SR20 I followed the write up they have, but i just want to verify with the zilvia community if i did this soldering part correctly. I'm a bit skeptical because that's alot of current flowing through these wires Last edited by Row; 04-27-2009 at 06:49 PM..

04-27-2009, 04:27 AM	#3
GSXRJJordan Post Whore! Join Date: May 2006 Location: << 626 >> Posts: 9,135 Trader Rating: (19) Rides Gallery: GSXRJJordan Feedback Score: 19 reviews	Yup, they're all switched +12V. Make sure you've got at least 10A on it though, cause the ECU/sensors/ignitier/coilpacks pull about 8A at full tilt. If you have any wiring questions, shoot me a PM, I pwn harnesses all day long __________________ Jordan Innovations has a new web site! www.JordanInnovations.com -- All your favorite FD Pro Drifters love it, trust me -- www.JordanInnovations.com

06-10-2009, 12:11 AM	#5
GSXRJJordan Post Whore! Join Date: May 2006 Location: << 626 >> Posts: 9,135 Trader Rating: (19) Rides Gallery: GSXRJJordan Feedback Score: 19 reviews	^^^ Yup, I believe so. I'd have to know where they're going to tell you for sure, but it sounds right. __________________ Jordan Innovations has a new web site! www.JordanInnovations.com -- All your favorite FD Pro Drifters love it, trust me -- www.JordanInnovations.com

06-11-2009, 01:02 PM	#7
GSXRJJordan Post Whore! Join Date: May 2006 Location: << 626 >> Posts: 9,135 Trader Rating: (19) Rides Gallery: GSXRJJordan Feedback Score: 19 reviews	They're all ignition switched +12v - black/red is black/white elsewhere, and actually goes to the switch (and is fused by the green 30amp fusible link), blue/red is coilpack power, fused separately at 10amp. __________________ Jordan Innovations has a new web site! www.JordanInnovations.com -- All your favorite FD Pro Drifters love it, trust me -- www.JordanInnovations.com

10-07-2009, 04:38 PM	#8
corey240 Zilvia Junkie Join Date: Dec 2005 Location: Cumberland, Maryland Age: 32 Posts: 508 Trader Rating: (2) Feedback Score: 2 reviews	I have a question pertaining to this. I am switching my harness from s14 to s13. I found and followed the black/red wire in the s14. I CANNOT find the same wire in the dash harness on the s13. Where is the end of it that connects to the black/red wire in the sr harness? __________________ Email: [email protected]

04-27-2009, 03:39 AM	#2
tsanumei4321 Join Date: Nov 2008 Location: hawaii Posts: 20 Trader Rating: (2) Feedback Score: 2 reviews	i just did the same a few hours ago seriously imma check it later though, should be ok

06-09-2009, 10:12 PM	#4
gnxregal Join Date: Sep 2007 Location: Louisiana Posts: 7 Trader Rating: (0) Feedback Score: 0 reviews	I noticed on my SR Harness there were two blue / red stripe. One wire is larger than the other. Do all of these wires go together with the red / black?

06-11-2009, 06:26 AM	#6
slociv Join Date: Apr 2005 Location: ky Age: 39 Posts: 16 Trader Rating: (0) Feedback Score: 0 reviews	If your talking s13, the front plug behind the passenger headlight then no. The thick blue/red and the thick Black/red both go to the thick black/red. I think it was black red, either way the three thickest wires. The thin blue.red goes to the other thin blue red.

10-07-2009, 06:54 PM	#10
corey240 Zilvia Junkie Join Date: Dec 2005 Location: Cumberland, Maryland Age: 32 Posts: 508 Trader Rating: (2) Feedback Score: 2 reviews	What I dont understand is where the wire connects to now. I removed my s13 sr engine harness from my s14 chassis. Now in the s13 chassis. I cant seem to figure out where the ignition power wire connects in the s13 chassis. I guess theres supposed to be a plug from the s13 dash harness that the engine harness connects to near the ecu. Mine was cut out. So now I have to hard wire the harnesses together, not a problem, except, I cannot find this one wire not can I figure out what wire it goes to. I mean, it says to connect it to the black with red wire in the harness, but I dont have it. My car is caged and I cut the dash out today and opened the harness to still no find it leading to the passenger side. I followed for reference in my s14. Am I missing somthing? I cant get a usuable s13 fsm link ANYWHERE so im stumped on this now. In the S14 thes 2 wires were just connnected via a locking type plug. I had to cut that plug off the sr harness to switch them over when I saw it wasnt the same in the new car. __________________ Email: [email protected]

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