someone please ID this harness - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

supreme_1 · 05-28-2009, 03:23 AM

its a grey 4 pin harness that is located underneath the pass side fuse box. it looks like it should plug into the lower engine harness but i have no plug that fits.

im currently doing a dohc to sohc swap, and without this plug in place the car doesnt even crank or click.

im using a sohc engine harness and a sohc lower harness. i dont have time to find a dohc lower harness, so does anyone know what this 4 pinner does?

supreme_1 · 05-28-2009, 04:15 AM

okay, so i was doing some research and comparing a bunch of wiring diagrams i wrote down. heres what i found.

the body harness tucked away behind the battery in the pass fender has these 4 wires tucked away in there. (car was originally 1991 dohc)

yellow with blue stripe
red with blue stripe
black
2 brown wires

one of those brown wires are for the 02 power signal and the other is the wire i need to tap into.

in my sr diagram these wires are just chillin on the side with no home, so im guessing they are only specific to sohcs/dohcs, the dohc wiring that i had looked at does not have the red/blue, black, and one brown in it, so im guessing thats sohc specific.

can someone please chime in to make sure my rationale is correct. the last thing i need is to fry something right before we finish.

lastly, does anyone know exactly what these wires are?

yellow/blue
red/blue
black
brown

WoolyS14DET · 05-28-2009, 12:27 PM

Almost looks like the A/c fan plug ??

05-28-2009, 03:23 AM	#1
supreme_1 Zilvia Addict Join Date: Sep 2007 Location: hawaii Posts: 612 Trader Rating: (12) Feedback Score: 12 reviews	someone please ID this harness its a grey 4 pin harness that is located underneath the pass side fuse box. it looks like it should plug into the lower engine harness but i have no plug that fits. im currently doing a dohc to sohc swap, and without this plug in place the car doesnt even crank or click. im using a sohc engine harness and a sohc lower harness. i dont have time to find a dohc lower harness, so does anyone know what this 4 pinner does?

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

05-28-2009, 04:15 AM	#2
supreme_1 Zilvia Addict Join Date: Sep 2007 Location: hawaii Posts: 612 Trader Rating: (12) Feedback Score: 12 reviews	okay, so i was doing some research and comparing a bunch of wiring diagrams i wrote down. heres what i found. the body harness tucked away behind the battery in the pass fender has these 4 wires tucked away in there. (car was originally 1991 dohc) yellow with blue stripe red with blue stripe black 2 brown wires one of those brown wires are for the 02 power signal and the other is the wire i need to tap into. in my sr diagram these wires are just chillin on the side with no home, so im guessing they are only specific to sohcs/dohcs, the dohc wiring that i had looked at does not have the red/blue, black, and one brown in it, so im guessing thats sohc specific. can someone please chime in to make sure my rationale is correct. the last thing i need is to fry something right before we finish. lastly, does anyone know exactly what these wires are? yellow/blue red/blue black brown

05-28-2009, 12:27 PM	#3
WoolyS14DET Zilvia FREAK! Join Date: Mar 2008 Location: Long Island, NY Age: 42 Posts: 1,310 Trader Rating: (18) Feedback Score: 18 reviews	Almost looks like the A/c fan plug ??