help!! difference between dohc and sohc cluster sub harness - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

tr1ni · 04-08-2014, 08:34 PM

Hey whats up guys I need some help I have a 1990 hatchback with a sr20 and my tach is not working. I already have a dohc cluster and I purchased a subharness from ebay but its still not working. I been trying to compare the dohc and sohc harnesses and they both look identical the wires are in the same exact place so I was wondering if the seller sold me the wrong harness. Is there any way I can tell the difference between the 2? Thanks I would appreciate the help

Trap Star · 04-09-2014, 10:17 AM

I'm pretty sure it's a straight plug and play swap. I didn't change any wiring or harnesses when I installed mine and it works fine.

kruked · 04-09-2014, 06:05 PM

The sub harnesses are exactly the same. Either your tach doesn't work, or you have the wrong tach possibly. Although you say that you have a DOHC cluster

Vegass13 · 04-09-2014, 06:18 PM

are you sure your wiring on the sr harness is correct for the cluster? the sohc should work with sr harness except the tach, if its wired corrrect

hatchtastic · 04-09-2014, 06:46 PM

They are the exact same

tr1ni · 04-09-2014, 07:35 PM

Its definitely a dohc tach. Ill have double check the wiring. I purchased the car with the swap done it has a wiring specialty harness will that need to be modified? I figured everything should be plug n play

Vegass13 · 04-09-2014, 07:57 PM

I'm not sure I wouldn't think so either but wouldn't hurt to check and it isn't hard....if they use the same colors in their harnesses use the frsport write up as a guide to check

Also check fuses...I don't think there is one for the cluster but I'm not sure

04-08-2014, 08:34 PM	#1
tr1ni Join Date: Oct 2011 Location: ny Posts: 16 Trader Rating: (1) Feedback Score: 1 reviews	help!! difference between dohc and sohc cluster sub harness Hey whats up guys I need some help I have a 1990 hatchback with a sr20 and my tach is not working. I already have a dohc cluster and I purchased a subharness from ebay but its still not working. I been trying to compare the dohc and sohc harnesses and they both look identical the wires are in the same exact place so I was wondering if the seller sold me the wrong harness. Is there any way I can tell the difference between the 2? Thanks I would appreciate the help

04-09-2014, 10:17 AM	#2
Trap Star Zilvia Junkie Join Date: Jan 2008 Location: ATL/Sylva, NC Age: 37 Posts: 409 Trader Rating: (0) Feedback Score: 0 reviews	I'm pretty sure it's a straight plug and play swap. I didn't change any wiring or harnesses when I installed mine and it works fine. __________________ 86 300zx/90 240sx/97 240sx/96 LS400/03 350z -Shake N' Break Racing-

04-09-2014, 06:05 PM	#3
kruked Nissanaholic! Join Date: Feb 2012 Location: Clearwater, Fl. Posts: 2,293 Trader Rating: (37) Feedback Score: 37 reviews	The sub harnesses are exactly the same. Either your tach doesn't work, or you have the wrong tach possibly. Although you say that you have a DOHC cluster __________________ S13 coupe, KA-t

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04-09-2014, 06:18 PM	#4
Vegass13 Zilvia Member Join Date: Jan 2014 Location: Las Vegas Posts: 159 Trader Rating: (3) Feedback Score: 3 reviews	are you sure your wiring on the sr harness is correct for the cluster? the sohc should work with sr harness except the tach, if its wired corrrect

04-09-2014, 06:46 PM	#5
hatchtastic Zilvia Member Join Date: Feb 2013 Location: phoenix az Age: 35 Posts: 281 Trader Rating: (6) Feedback Score: 6 reviews	They are the exact same

04-09-2014, 07:35 PM	#6
tr1ni Join Date: Oct 2011 Location: ny Posts: 16 Trader Rating: (1) Feedback Score: 1 reviews	Its definitely a dohc tach. Ill have double check the wiring. I purchased the car with the swap done it has a wiring specialty harness will that need to be modified? I figured everything should be plug n play

04-09-2014, 07:57 PM	#7
Vegass13 Zilvia Member Join Date: Jan 2014 Location: Las Vegas Posts: 159 Trader Rating: (3) Feedback Score: 3 reviews	I'm not sure I wouldn't think so either but wouldn't hurt to check and it isn't hard....if they use the same colors in their harnesses use the frsport write up as a guide to check Also check fuses...I don't think there is one for the cluster but I'm not sure